When unloading the SCMI core stack module, configured to use the virtio
SCMI transport, LOCKDEP reports the splat down below about unsafe locks
dependencies.
In order to avoid this possible unsafe locking scenario call upfront
virtio_break_device() before getting hold of vioch->lock.
=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
6.1.0-00067-g6b934395ba07-dirty #4 Not tainted
-----------------------------------------------------
rmmod/307 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff000080c510e0 (&dev->vqs_list_lock){+.+.}-{3:3}, at: virtio_break_device+0x28/0x68
and this task is already holding:
ffff00008288ada0 (&channels[i].lock){-.-.}-{3:3}, at: virtio_chan_free+0x60/0x168 [scmi_module]
which would create a new lock dependency:
(&channels[i].lock){-.-.}-{3:3} -> (&dev->vqs_list_lock){+.+.}-{3:3}
but this new dependency connects a HARDIRQ-irq-safe lock:
(&channels[i].lock){-.-.}-{3:3}
... which became HARDIRQ-irq-safe at:
lock_acquire+0x128/0x398
_raw_spin_lock_irqsave+0x78/0x140
scmi_vio_complete_cb+0xb4/0x3b8 [scmi_module]
vring_interrupt+0x84/0x120
vm_interrupt+0x94/0xe8
__handle_irq_event_percpu+0xb4/0x3d8
handle_irq_event_percpu+0x20/0x68
handle_irq_event+0x50/0xb0
handle_fasteoi_irq+0xac/0x138
generic_handle_domain_irq+0x34/0x50
gic_handle_irq+0xa0/0xd8
call_on_irq_stack+0x2c/0x54
do_interrupt_handler+0x8c/0x90
el1_interrupt+0x40/0x78
el1h_64_irq_handler+0x18/0x28
el1h_64_irq+0x64/0x68
_raw_write_unlock_irq+0x48/0x80
ep_start_scan+0xf0/0x128
do_epoll_wait+0x390/0x858
do_compat_epoll_pwait.part.34+0x1c/0xb8
__arm64_sys_epoll_pwait+0x80/0xd0
invoke_syscall+0x4c/0x110
el0_svc_common.constprop.3+0x98/0x120
do_el0_svc+0x34/0xd0
el0_svc+0x40/0x98
el0t_64_sync_handler+0x98/0xc0
el0t_64_sync+0x170/0x174
to a HARDIRQ-irq-unsafe lock:
(&dev->vqs_list_lock){+.+.}-{3:3}
... which became HARDIRQ-irq-unsafe at:
...
lock_acquire+0x128/0x398
_raw_spin_lock+0x58/0x70
__vring_new_virtqueue+0x130/0x1c0
vring_create_virtqueue+0xc4/0x2b8
vm_find_vqs+0x20c/0x430
init_vq+0x308/0x390
virtblk_probe+0x114/0x9b0
virtio_dev_probe+0x1a4/0x248
really_probe+0xc8/0x3a8
__driver_probe_device+0x84/0x190
driver_probe_device+0x44/0x110
__driver_attach+0x104/0x1e8
bus_for_each_dev+0x7c/0xd0
driver_attach+0x2c/0x38
bus_add_driver+0x1e4/0x258
driver_register+0x6c/0x128
register_virtio_driver+0x2c/0x48
virtio_blk_init+0x70/0xac
do_one_initcall+0x84/0x420
kernel_init_freeable+0x2d0/0x340
kernel_init+0x2c/0x138
ret_from_fork+0x10/0x20
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&dev->vqs_list_lock);
local_irq_disable();
lock(&channels[i].lock);
lock(&dev->vqs_list_lock);
<Interrupt>
lock(&channels[i].lock);
*** DEADLOCK ***
================
Fixes: 42e90eb53b ("firmware: arm_scmi: Add a virtio channel refcount")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-6-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
A misbheaving SCMI platform firmware could reply with out-of-spec
notifications, shorter than the mimimum size comprising a header.
Fixes: d5141f37c4 ("firmware: arm_scmi: Add notifications support in transport layer")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-4-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
A misbheaving SCMI platform firmware could reply with out-of-spec messages,
shorter than the mimimum size comprising a header and a status field.
Harden shmem_fetch_response to properly truncate such a bad messages.
Fixes: 5c8a47a5a9 ("firmware: arm_scmi: Make scmi core independent of the transport type")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-3-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Stale error status reported from a previous message transaction must be
cleared before starting a new transaction to avoid being confusingly
reported in the following SCMI message dump traces.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221222183823.518856-2-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
When devres_open_group() fails, it returns -ENOMEM without freeing memory
allocated by edac_mc_alloc().
Call edac_mc_free() on the error handling path to avoid a memory leak.
[ bp: Massage commit message. ]
Fixes: a1b01edb27 ("edac: add support for Calxeda highbank memory controller")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20221229054825.1361993-1-linmq006@gmail.com
This fixes the definition of the PM8550 ldo11 regulator matching it's
capabilities since this LDO is designed to work between 1,2V and 1,5V.
Fixes: e6e3776d68 ("regulator: qcom-rpmh: Add support for PM8550 regulators")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20230102-topic-sm8550-upstream-fixes-reg-l11b-nldo-v1-1-d97def246338@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
[BUG]
Even with commit 81d5d61454 ("btrfs: enhance unsupported compat RO
flags handling"), btrfs can still mount a fs with unsupported compat_ro
flags read-only, then remount it RW:
# btrfs ins dump-super /dev/loop0 | grep compat_ro_flags -A 3
compat_ro_flags 0x403
( FREE_SPACE_TREE |
FREE_SPACE_TREE_VALID |
unknown flag: 0x400 )
# mount /dev/loop0 /mnt/btrfs
mount: /mnt/btrfs: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
^^^ RW mount failed as expected ^^^
# dmesg -t | tail -n5
loop0: detected capacity change from 0 to 1048576
BTRFS: device fsid cb5b82f5-0fdd-4d81-9b4b-78533c324afa devid 1 transid 7 /dev/loop0 scanned by mount (1146)
BTRFS info (device loop0): using crc32c (crc32c-intel) checksum algorithm
BTRFS info (device loop0): using free space tree
BTRFS error (device loop0): cannot mount read-write because of unknown compat_ro features (0x403)
BTRFS error (device loop0): open_ctree failed
# mount /dev/loop0 -o ro /mnt/btrfs
# mount -o remount,rw /mnt/btrfs
^^^ RW remount succeeded unexpectedly ^^^
[CAUSE]
Currently we use btrfs_check_features() to check compat_ro flags against
our current mount flags.
That function get reused between open_ctree() and btrfs_remount().
But for btrfs_remount(), the super block we passed in still has the old
mount flags, thus btrfs_check_features() still believes we're mounting
read-only.
[FIX]
Replace the existing @sb argument with @is_rw_mount.
As originally we only use @sb to determine if the mount is RW.
Now it's callers' responsibility to determine if the mount is RW, and
since there are only two callers, the check is pretty simple:
- caller in open_ctree()
Just pass !sb_rdonly().
- caller in btrfs_remount()
Pass !(*flags & SB_RDONLY), as our check should be against the new
flags.
Now we can correctly reject the RW remount:
# mount /dev/loop0 -o ro /mnt/btrfs
# mount -o remount,rw /mnt/btrfs
mount: /mnt/btrfs: mount point not mounted or bad option.
dmesg(1) may have more information after failed mount system call.
# dmesg -t | tail -n 1
BTRFS error (device loop0: state M): cannot mount read-write because of unknown compat_ro features (0x403)
Reported-by: Chung-Chiang Cheng <shepjeng@gmail.com>
Fixes: 81d5d61454 ("btrfs: enhance unsupported compat RO flags handling")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently we have a btrfs_debug() for run_one_delayed_ref() failure, but
if end users hit such problem, there will be no chance that
btrfs_debug() is enabled. This can lead to very little useful info for
debugging.
This patch will:
- Add extra info for error reporting
Including:
* logical bytenr
* num_bytes
* type
* action
* ref_mod
- Replace the btrfs_debug() with btrfs_err()
- Move the error reporting into run_one_delayed_ref()
This is to avoid use-after-free, the @node can be freed in the caller.
This error should only be triggered at most once.
As if run_one_delayed_ref() failed, we trigger the error message, then
causing the call chain to error out:
btrfs_run_delayed_refs()
`- btrfs_run_delayed_refs()
`- btrfs_run_delayed_refs_for_head()
`- run_one_delayed_ref()
And we will abort the current transaction in btrfs_run_delayed_refs().
If we have to run delayed refs for the abort transaction,
run_one_delayed_ref() will just cleanup the refs and do nothing, thus no
new error messages would be output.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There is another Dell Latitude laptop (1028:0c03) with Realtek
codec ALC3254 which needs the ALC269_FIXUP_DELL4_MIC_NO_PRESENCE
instead of the default matched ALC269_FIXUP_DELL1_MIC_NO_PRESENCE.
Apply correct fixup for this particular model to enable headset mic.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230103095332.730677-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Turn on power early to avoid wrong state for power relation register.
This can earlier update JD state when resume back.
Signed-off-by: Yuchi Yang <yangyuchi66@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/e35d8f4fa18f4448a2315cc7d4a3715f@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[BUG]
There is a bug report that a BUG_ON() in btrfs_repair_io_failure()
(originally repair_io_failure() in v6.0 kernel) got triggered when
replacing a unreliable disk:
BTRFS warning (device sda1): csum failed root 257 ino 2397453 off 39624704 csum 0xb0d18c75 expected csum 0x4dae9c5e mirror 3
kernel BUG at fs/btrfs/extent_io.c:2380!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 9 PID: 3614331 Comm: kworker/u257:2 Tainted: G OE 6.0.0-5-amd64 #1 Debian 6.0.10-2
Hardware name: Micro-Star International Co., Ltd. MS-7C60/TRX40 PRO WIFI (MS-7C60), BIOS 2.70 07/01/2021
Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]
RIP: 0010:repair_io_failure+0x24a/0x260 [btrfs]
Call Trace:
<TASK>
clean_io_failure+0x14d/0x180 [btrfs]
end_bio_extent_readpage+0x412/0x6e0 [btrfs]
? __switch_to+0x106/0x420
process_one_work+0x1c7/0x380
worker_thread+0x4d/0x380
? rescuer_thread+0x3a0/0x3a0
kthread+0xe9/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
[CAUSE]
Before the BUG_ON(), we got some read errors from the replace target
first, note the mirror number (3, which is beyond RAID1 duplication,
thus it's read from the replace target device).
Then at the BUG_ON() location, we are trying to writeback the repaired
sectors back the failed device.
The check looks like this:
ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, logical,
&map_length, &bioc, mirror_num);
if (ret)
goto out_counter_dec;
BUG_ON(mirror_num != bioc->mirror_num);
But inside btrfs_map_block(), we can modify bioc->mirror_num especially
for dev-replace:
if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 &&
!need_full_stripe(op) && dev_replace->tgtdev != NULL) {
ret = get_extra_mirror_from_replace(fs_info, logical, *length,
dev_replace->srcdev->devid,
&mirror_num,
&physical_to_patch_in_first_stripe);
patch_the_first_stripe_for_dev_replace = 1;
}
Thus if we're repairing the replace target device, we're going to
trigger that BUG_ON().
But in reality, the read failure from the replace target device may be
that, our replace hasn't reached the range we're reading, thus we're
reading garbage, but with replace running, the range would be properly
filled later.
Thus in that case, we don't need to do anything but let the replace
routine to handle it.
[FIX]
Instead of a BUG_ON(), just skip the repair if we're repairing the
device replace target device.
Reported-by: 小太 <nospam@kota.moe>
Link: https://lore.kernel.org/linux-btrfs/CACsxjPYyJGQZ+yvjzxA1Nn2LuqkYqTCcUH43S=+wXhyf8S00Ag@mail.gmail.com/
CC: stable@vger.kernel.org # 6.0+
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
During lseek, when searching for delalloc in a range that represents a
hole and that range has a length of 1 byte, we end up not doing the actual
delalloc search in the inode's io tree, resulting in not correctly
reporting the offset with data or a hole. This actually only happens when
the start offset is 0 because with any other start offset we round it down
by sector size.
Reproducer:
$ mkfs.btrfs -f /dev/sdc
$ mount /dev/sdc /mnt/sdc
$ xfs_io -f -c "pwrite -q 0 1" /mnt/sdc/foo
$ xfs_io -c "seek -d 0" /mnt/sdc/foo
Whence Result
DATA EOF
It should have reported an offset of 0 instead of EOF.
Fix this by updating btrfs_find_delalloc_in_range() and count_range_bits()
to deal with inclusive ranges properly. These functions are already
supposed to work with inclusive end offsets, they just got it wrong in a
couple places due to off-by-one mistakes.
A test case for fstests will be added later.
Reported-by: Joan Bruguera Micó <joanbrugueram@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/20221223020509.457113-1-joanbrugueram@gmail.com/
Fixes: b6e833567e ("btrfs: make hole and data seeking a lot more efficient")
CC: stable@vger.kernel.org # 6.1
Tested-by: Joan Bruguera Micó <joanbrugueram@gmail.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[BUG]
There is a bug report that on a RAID0 NVMe btrfs system, under heavy
write load the filesystem can flip RO randomly.
With extra debugging, it shows some tree blocks failed to pass their
level checks, and if that happens at critical path of a transaction, we
abort the transaction:
BTRFS error (device nvme0n1p3): level verify failed on logical 5446121209856 mirror 1 wanted 0 found 1
BTRFS error (device nvme0n1p3: state A): Transaction aborted (error -5)
BTRFS: error (device nvme0n1p3: state A) in btrfs_finish_ordered_io:3343: errno=-5 IO failure
BTRFS info (device nvme0n1p3: state EA): forced readonly
[CAUSE]
The reporter has already bisected to commit 947a629988 ("btrfs: move
tree block parentness check into validate_extent_buffer()").
And with extra debugging, it shows we can have btrfs_tree_parent_check
filled with all zeros in the following call trace:
submit_one_bio+0xd4/0xe0
submit_extent_page+0x142/0x550
read_extent_buffer_pages+0x584/0x9c0
? __pfx_end_bio_extent_readpage+0x10/0x10
? folio_unlock+0x1d/0x50
btrfs_read_extent_buffer+0x98/0x150
read_tree_block+0x43/0xa0
read_block_for_search+0x266/0x370
btrfs_search_slot+0x351/0xd30
? lock_is_held_type+0xe8/0x140
btrfs_lookup_csum+0x63/0x150
btrfs_csum_file_blocks+0x197/0x6c0
? sched_clock_cpu+0x9f/0xc0
? lock_release+0x14b/0x440
? _raw_read_unlock+0x29/0x50
btrfs_finish_ordered_io+0x441/0x860
btrfs_work_helper+0xfe/0x400
? lock_is_held_type+0xe8/0x140
process_one_work+0x294/0x5b0
worker_thread+0x4f/0x3a0
? __pfx_worker_thread+0x10/0x10
kthread+0xf5/0x120
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2c/0x50
Currently we only copy the btrfs_tree_parent_check structure into bbio
at read_extent_buffer_pages() after we have assembled the bbio.
But as shown above, submit_extent_page() itself can already submit the
bbio, leaving the bbio->parent_check uninitialized, and cause the false
alert.
[FIX]
Instead of copying @check into bbio after bbio is assembled, we pass
@check in btrfs_bio_ctrl::parent_check, and copy the content of
parent_check in submit_one_bio() for metadata read.
By this we should be able to pass the needed info for metadata endio
verification, and fix the false alert.
Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CABXGCsNzVxo4iq-tJSGm_kO1UggHXgq6CdcHDL=z5FL4njYXSQ@mail.gmail.com/
Fixes: 947a629988 ("btrfs: move tree block parentness check into validate_extent_buffer()")
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
From a recent regression report, we found that after commit 947a629988
("btrfs: move tree block parentness check into
validate_extent_buffer()") if we have a level mismatch (false alert
though), there is no error message at all.
This makes later debugging harder. This patch will add the proper error
message for such case.
Link: https://lore.kernel.org/linux-btrfs/CABXGCsNzVxo4iq-tJSGm_kO1UggHXgq6CdcHDL=z5FL4njYXSQ@mail.gmail.com/
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The em->len value is supposed to be verified in the assertion condition
though we expect it to be same as the sectorsize.
Fixes: a196a8944f ("btrfs: do not reset extent map members for inline extents read")
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Tanmay Bhushan <007047221b@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Starting with glibc 2.35 there are extra inet_pton() calls when doing a
IPv6 ping as in one of the 'perf test' entry, which makes it fail:
# perf test inet_pton
89: probe libc's inet_pton & backtrace it with ping : FAILED!
#
If we look at what this script is expecting (commenting out the removal
of the temporary files in it):
# cat /tmp/expected.aT6
ping[][0-9 \.:]+probe_libc:inet_pton: \([[:xdigit:]]+\)
.*inet_pton\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc.so.6|inlined\)$
getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc.so.6\)$
.*(\+0x[[:xdigit:]]+|\[unknown\])[[:space:]]\(.*/bin/ping.*\)$
#
And looking at what we are getting out of 'perf script', to match with
the above:
# cat /tmp/perf.script.IUC
ping 623883 [006] 265438.471610: probe_libc:inet_pton: (7f32bcf314c0)
1314c0 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
29510 __libc_start_call_main+0x80 (/usr/lib64/libc.so.6)
ping 623883 [006] 265438.471664: probe_libc:inet_pton: (7f32bcf314c0)
1314c0 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
fa6c6 getaddrinfo+0x126 (/usr/lib64/libc.so.6)
491e [unknown] (/usr/bin/ping)
#
We see that its just the first call to inet_pton() that didn't came thru
getaddrinfo(), so if we ignore the first the script matches what it
expects, testing that using 'perf probe' + 'perf record' + 'perf script'
with callchains on userspace targets is producing the expected results.
Since we don't have a 'perf script --skip' to help us here, use tac +
grep to do that, resulting in a one liner that makes this script work on
both older glibc versions as well as with 2.35.
With it, on fedora 36, x86, glibc 2.35:
# perf test inet_pton
90: probe libc's inet_pton & backtrace it with ping : Ok
# perf test -v inet_pton
90: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 627197
ping 627220 1 267956.962402: probe_libc:inet_pton_1: (7f488bf314c0)
1314c0 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
fa6c6 getaddrinfo+0x126 (/usr/lib64/libc.so.6)
491e n (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
#
And on Ubuntu 22.04.1 LTS on a Libre Computer ROC-RK3399-PC arm64 system:
Before this patch it works (see that the script used has no 'tac' to
remove the first event):
root@roc-rk3399-pc:~# dpkg -l | grep libc-bin
ii libc-bin 2.35-0ubuntu3.1 arm64 GNU C Library: Binaries
root@roc-rk3399-pc:~# grep -w tac ~acme/libexec/perf-core/tests/shell/record+probe_libc_inet_pton.sh
root@roc-rk3399-pc:~# perf test inet_pton
86: probe libc's inet_pton & backtrace it with ping : Ok
root@roc-rk3399-pc:~# perf test -v inet_pton
86: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 1375
ping 1399 [000] 4114.417450: probe_libc:inet_pton: (ffffb3e26120)
106120 inet_pton+0x0 (/usr/lib/aarch64-linux-gnu/libc.so.6)
d18bc getaddrinfo+0xec (/usr/lib/aarch64-linux-gnu/libc.so.6)
2b68 [unknown] (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
root@roc-rk3399-pc:~#
And after it continues to work:
root@roc-rk3399-pc:~# grep -w tac ~acme/libexec/perf-core/tests/shell/record+probe_libc_inet_pton.sh
perf script -i $perf_data | tac | grep -m1 ^ping -B9 | tac > $perf_script
root@roc-rk3399-pc:~# perf test inet_pton
86: probe libc's inet_pton & backtrace it with ping : Ok
root@roc-rk3399-pc:~# perf test -v inet_pton
86: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 6995
ping 7019 [005] 4832.160741: probe_libc:inet_pton: (ffffa62e6120)
106120 inet_pton+0x0 (/usr/lib/aarch64-linux-gnu/libc.so.6)
d18bc getaddrinfo+0xec (/usr/lib/aarch64-linux-gnu/libc.so.6)
2b68 [unknown] (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
root@roc-rk3399-pc:~#
Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/Y7QyPkPlDYip3cZH@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The drm_sched_entity_kill() is invoked twice by drm_sched_entity_destroy()
while userspace process is exiting or being killed. First time it's invoked
when sched entity is flushed and second time when entity is released. This
causes a lockup within wait_for_completion(entity_idle) due to how completion
API works.
Calling wait_for_completion() more times than complete() was invoked is a
error condition that causes lockup because completion internally uses
counter for complete/wait calls. The complete_all() must be used instead
in such cases.
This patch fixes lockup of Panfrost driver that is reproducible by killing
any application in a middle of 3d drawing operation.
Fixes: 2fdb8a8f07 ("drm/scheduler: rework entity flush, kill and fini")
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://patchwork.freedesktop.org/patch/msgid/20221123001303.533968-1-dmitry.osipenko@collabora.com
There is a build error when COMPILE_TEST=y, TI_SCI_PROTOCOL=m,
and RESET_TI_SCI=y:
drivers/reset/reset-ti-sci.o: in function `ti_sci_reset_probe':
reset-ti-sci.c:(.text+0x22c): undefined reference to `devm_ti_sci_get_handle'
Fix this by making RESET_TI_SCI honor the Kconfig setting of
TI_SCI_PROTOCOL when COMPILE_TEST is not set. When COMPILE_TEST is set,
TI_SCI_PROTOCOL must be disabled (=n).
Fixes: a6af504184 ("reset: ti-sci: Allow building under COMPILE_TEST")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tero Kristo <kristo@kernel.org>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20221030055636.3139-1-rdunlap@infradead.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Clean up kernel-doc complaints about function names and non-kernel-doc
comments in kernel/time/. Fixes these warnings:
kernel/time/time.c:479: warning: expecting prototype for set_normalized_timespec(). Prototype was for set_normalized_timespec64() instead
kernel/time/time.c:553: warning: expecting prototype for msecs_to_jiffies(). Prototype was for __msecs_to_jiffies() instead
kernel/time/timekeeping.c:1595: warning: contents before sections
kernel/time/timekeeping.c:1705: warning: This comment starts with '/**', but isn't a kernel-doc comment.
* We have three kinds of time sources to use for sleep time
kernel/time/timekeeping.c:1726: warning: This comment starts with '/**', but isn't a kernel-doc comment.
* 1) can be determined whether to use or not only when doing
kernel/time/tick-oneshot.c:21: warning: missing initial short description on line:
* tick_program_event
kernel/time/tick-oneshot.c:107: warning: expecting prototype for tick_check_oneshot_mode(). Prototype was for tick_oneshot_mode_active() instead
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230103032849.12723-1-rdunlap@infradead.org
The former is an AArch32 legacy, so let's move over to the
verbose (and strictly identical) version.
This involves moving some of the #defines that were private
to KVM into the more generic esr.h.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Although the KVM API says that a write to a RO memslot must result
in a KVM_EXIT_MMIO describing the write, the arm64 architecture
doesn't provide the *data* written by a Stage-1 page table walk
(we only get the address).
Since there isn't much userspace can do with so little information
anyway, document the fact that such an access results in a guest
exception, not an exit. This is consistent with the guest being
terminally broken anyway.
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
A recent development on the EFI front has resulted in guests having
their page tables baked in the firmware binary, and mapped into the
IPA space as part of a read-only memslot. Not only is this legitimate,
but it also results in added security, so thumbs up.
It is possible to take an S1PTW translation fault if the S1 PTs are
unmapped at stage-2. However, KVM unconditionally treats S1PTW as a
write to correctly handle hardware AF/DB updates to the S1 PTs.
Furthermore, KVM injects an exception into the guest for S1PTW writes.
In the aforementioned case this results in the guest taking an abort
it won't recover from, as the S1 PTs mapping the vectors suffer from
the same problem.
So clearly our handling is... wrong.
Instead, switch to a two-pronged approach:
- On S1PTW translation fault, handle the fault as a read
- On S1PTW permission fault, handle the fault as a write
This is of no consequence to SW that *writes* to its PTs (the write
will trigger a non-S1PTW fault), and SW that uses RO PTs will not
use HW-assisted AF/DB anyway, as that'd be wrong.
Only in the case described in c4ad98e4b7 ("KVM: arm64: Assume write
fault on S1PTW permission fault on instruction fetch") do we end-up
with two back-to-back faults (page being evicted and faulted back).
I don't think this is a case worth optimising for.
Fixes: c4ad98e4b7 ("KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch")
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Regression-tested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
After [1][2], if we catch exceptions due to EFI runtime service, we will
clear EFI_RUNTIME_SERVICES bit to disable EFI runtime service, then the
subsequent routine which invoke the EFI runtime service should fail.
But the userspace cat efivars through /sys/firmware/efi/efivars/ will stuck
and infinite loop calling read() due to efivarfs_file_read() return -EINTR.
The -EINTR is converted from EFI_ABORTED by efi_status_to_err(), and is
an improper return value in this situation, so let virt_efi_xxx() return
EFI_DEVICE_ERROR and converted to -EIO to invoker.
Cc: <stable@vger.kernel.org>
Fixes: 3425d934fc ("efi/x86: Handle page faults occurring while running EFI runtime services")
Fixes: 23715a26c8 ("arm64: efi: Recover from synchronous exceptions occurring in firmware")
Signed-off-by: Ding Hui <dinghui@sangfor.com.cn>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
In cases where runtime services are not supported or have been disabled,
the runtime services workqueue will never have been allocated.
Do not try to destroy the workqueue unconditionally in the unlikely
event that EFI initialisation fails to avoid dereferencing a NULL
pointer.
Fixes: 98086df8b7 ("efi: add missed destroy_workqueue when efisubsys_init fails")
Cc: stable@vger.kernel.org
Cc: Li Heng <liheng40@huawei.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Variables off and len typed as uint32 in rndis_query function
are controlled by incoming RNDIS response message thus their
value may be manipulated. Setting off to a unexpectetly large
value will cause the sum with len and 8 to overflow and pass
the implemented validation step. Consequently the response
pointer will be referring to a location past the expected
buffer boundaries allowing information leakage e.g. via
RNDIS_OID_802_3_PERMANENT_ADDRESS OID.
Fixes: ddda086240 ("USB: rndis_host, various cleanups")
Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We want to fail if the PCS is not available, not if it is available. Fix
this condition.
Fixes: 5d93cfcf73 ("net: dpaa: Convert to phylink")
Reported-by: Christian Zigotzky <info@xenosoft.de>
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current code uses per_cpu pointer to get the lmtst_id mapped to
the core on which aura_free() is executed. Using per_cpu pointer
without preemption disable causing mismatch between lmtst_id and
core on which pointer gets freed. This patch fixes the issue by
disabling preemption around aura_free.
Fixes: ef6c8da71e ("octeontx2-pf: cn10K: Reserve LMTST lines per core")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Otherwise we would dereference a NULL aggregator pointer when calling
__set_agg_ports_ready on the line below.
Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Use signed integer in ipv6_skip_exthdr() called from nf_confirm().
Reported by static analysis tooling, patch from Florian Westphal.
2) Missing set type checks in nf_tables: Validate that set declaration
matches the an existing set type, otherwise bail out with EEXIST.
Currently, nf_tables silently accepts the re-declaration with a
different type but it bails out later with EINVAL when the user adds
entries to the set. This fix is relatively large because it requires
two preparation patches that are included in this batch.
3) Do not ignore updates of timeout and gc_interval parameters in
existing sets.
4) Fix a hang when 0/0 subnets is added to a hash:net,port,net type of
ipset. Except hash:net,port,net and hash:net,iface, the set types don't
support 0/0 and the auxiliary functions rely on this fact. So 0/0 needs
a special handling in hash:net,port,net which was missing (hash:net,iface
was not affected by this bug), from Jozsef Kadlecsik.
5) When adding/deleting large number of elements in one step in ipset,
it can take a reasonable amount of time and can result in soft lockup
errors. This patch is a complete rework of the previous version in order
to use a smaller internal batch limit and at the same time removing
the external hard limit to add arbitrary number of elements in one step.
Also from Jozsef Kadlecsik.
Except for patch #1, which fixes a bug introduced in the previous net-next
development cycle, anything else has been broken for several releases.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If we cancel the task_work, the worker will never come into existance.
As this is the last reference to it, ensure that we get it freed
appropriately.
Cc: stable@vger.kernel.org
Reported-by: 진호 <wnwlsgh98@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-----BEGIN PGP SIGNATURE-----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=+EpE
-----END PGP SIGNATURE-----
Merge tag 'for-6.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"First batch of regression and regular fixes:
- regressions:
- fix error handling after conversion to qstr for paths
- fix raid56/scrub recovery caused by uninitialized variable
after conversion to error bitmaps
- restore qgroup backref lookup behaviour after recent
refactoring
- fix leak of device lists at module exit time
- fix resolving backrefs for inline extent followed by prealloc
- reset defrag ioctl buffer on memory allocation error"
* tag 'for-6.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix fscrypt name leak after failure to join log transaction
btrfs: scrub: fix uninitialized return value in recover_scrub_rbio
btrfs: fix resolving backrefs for inline extent followed by prealloc
btrfs: fix trace event name typo for FLUSH_DELAYED_REFS
btrfs: restore BTRFS_SEQ_LAST when looking up qgroup backref lookup
btrfs: fix leak of fs devices after removing btrfs module
btrfs: fix an error handling path in btrfs_defrag_leaves()
btrfs: fix an error handling path in btrfs_rename()
syzbot is reporting hung task at do_user_addr_fault() [1], for there is
a silent deadlock between PG_locked bit and ni_lock lock.
Since filemap_update_page() calls filemap_read_folio() after calling
folio_trylock() which will set PG_locked bit, ntfs_truncate() must not
call truncate_setsize() which will wait for PG_locked bit to be cleared
when holding ni_lock lock.
Link: https://lore.kernel.org/all/00000000000060d41f05f139aa44@google.com/
Link: https://syzkaller.appspot.com/bug?extid=bed15dbf10294aa4f2ae [1]
Reported-by: syzbot <syzbot+bed15dbf10294aa4f2ae@syzkaller.appspotmail.com>
Debugged-by: Linus Torvalds <torvalds@linux-foundation.org>
Co-developed-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 4342306f0f ("fs/ntfs3: Add file operations and implementation")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After
b3e34a47f9 ("x86/kexec: fix memory leak of elf header buffer"),
freeing image->elf_headers in the error path of crash_load_segments()
is not needed because kimage_file_post_load_cleanup() will take
care of that later. And not clearing it could result in a double-free.
Drop the superfluous vfree() call at the error path of
crash_load_segments().
Fixes: b3e34a47f9 ("x86/kexec: fix memory leak of elf header buffer")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20221122115122.13937-1-tiwai@suse.de
Size of the 'expect' array in the __report_matches is 1536 bytes, which
is exactly the default frame size warning limit of the xtensa
architecture.
As a result allmodconfig xtensa kernel builds with the gcc that does not
support the compiler plugins (which otherwise would push the said
warning limit to 2K) fail with the following message:
kernel/kcsan/kcsan_test.c:257:1: error: the frame size of 1680 bytes
is larger than 1536 bytes
Fix it by dynamically allocating the 'expect' array.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
When we have a perf.data file with tracepoints, such as:
# perf evlist -f
probe_perf:lzma_decompress_to_file
# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events
#
We end up segfaulting when using perf built with NO_LIBTRACEEVENT=1 by
trying to find an evsel with a NULL 'event_name' variable:
(gdb) run report --stdio -f
Starting program: /root/bin/perf report --stdio -f
Program received signal SIGSEGV, Segmentation fault.
0x000000000055219d in find_evsel (evlist=0xfda7b0, event_name=0x0) at util/sort.c:2830
warning: Source file is more recent than executable.
2830 if (event_name[0] == '%') {
Missing separate debuginfos, use: dnf debuginfo-install bzip2-libs-1.0.8-11.fc36.x86_64 cyrus-sasl-lib-2.1.27-18.fc36.x86_64 elfutils-debuginfod-client-0.188-3.fc36.x86_64 elfutils-libelf-0.188-3.fc36.x86_64 elfutils-libs-0.188-3.fc36.x86_64 glibc-2.35-20.fc36.x86_64 keyutils-libs-1.6.1-4.fc36.x86_64 krb5-libs-1.19.2-12.fc36.x86_64 libbrotli-1.0.9-7.fc36.x86_64 libcap-2.48-4.fc36.x86_64 libcom_err-1.46.5-2.fc36.x86_64 libcurl-7.82.0-12.fc36.x86_64 libevent-2.1.12-6.fc36.x86_64 libgcc-12.2.1-4.fc36.x86_64 libidn2-2.3.4-1.fc36.x86_64 libnghttp2-1.51.0-1.fc36.x86_64 libpsl-0.21.1-5.fc36.x86_64 libselinux-3.3-4.fc36.x86_64 libssh-0.9.6-4.fc36.x86_64 libstdc++-12.2.1-4.fc36.x86_64 libunistring-1.0-1.fc36.x86_64 libunwind-1.6.2-2.fc36.x86_64 libxcrypt-4.4.33-4.fc36.x86_64 libzstd-1.5.2-2.fc36.x86_64 numactl-libs-2.0.14-5.fc36.x86_64 opencsd-1.2.0-1.fc36.x86_64 openldap-2.6.3-1.fc36.x86_64 openssl-libs-3.0.5-2.fc36.x86_64 slang-2.3.2-11.fc36.x86_64 xz-libs-5.2.5-9.fc36.x86_64 zlib-1.2.11-33.fc36.x86_64
(gdb) bt
#0 0x000000000055219d in find_evsel (evlist=0xfda7b0, event_name=0x0) at util/sort.c:2830
#1 0x0000000000552416 in add_dynamic_entry (evlist=0xfda7b0, tok=0xffb6eb "trace", level=2) at util/sort.c:2976
#2 0x0000000000552d26 in sort_dimension__add (list=0xf93e00 <perf_hpp_list>, tok=0xffb6eb "trace", evlist=0xfda7b0, level=2) at util/sort.c:3193
#3 0x0000000000552e1c in setup_sort_list (list=0xf93e00 <perf_hpp_list>, str=0xffb6eb "trace", evlist=0xfda7b0) at util/sort.c:3227
#4 0x00000000005532fa in __setup_sorting (evlist=0xfda7b0) at util/sort.c:3381
#5 0x0000000000553cdc in setup_sorting (evlist=0xfda7b0) at util/sort.c:3608
#6 0x000000000042eb9f in cmd_report (argc=0, argv=0x7fffffffe470) at builtin-report.c:1596
#7 0x00000000004aee7e in run_builtin (p=0xf64ca0 <commands+288>, argc=3, argv=0x7fffffffe470) at perf.c:330
#8 0x00000000004af0f2 in handle_internal_command (argc=3, argv=0x7fffffffe470) at perf.c:384
#9 0x00000000004af241 in run_argv (argcp=0x7fffffffe29c, argv=0x7fffffffe290) at perf.c:428
#10 0x00000000004af5fc in main (argc=3, argv=0x7fffffffe470) at perf.c:562
(gdb)
So check if we have tracepoint events in add_dynamic_entry() and bail
out instead:
# perf report --stdio -f
This perf binary isn't linked with libtraceevent, can't process probe_perf:lzma_decompress_to_file
Error:
Unknown --sort key: `trace'
#
Fixes: 378ef0f5d9 ("perf build: Use libtraceevent from the system")
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/Y7MDb7kRaHZB6APC@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If v4 READDIR operation hits a mountpoint and gets back an error,
then it will include that entry in the reply and set RDATTR_ERROR for it
to the error.
That's fine for "normal" exported filesystems, but on the v4root, we
need to be more careful to only expose the existence of dentries that
lead to exports.
If the mountd upcall times out while checking to see whether a
mountpoint on the v4root is exported, then we have no recourse other
than to fail the whole operation.
Cc: Steve Dickson <steved@redhat.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216777
Reported-by: JianHong Yin <yin-jianhong@163.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@vger.kernel.org>
This explodes the build if HEAD is signed, since the generated version
is gpg: Signature made Mon 26 Dec 2022 20:34:48 CET, then a few more
lines, then the SHA.
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/7c9637711271f50ec2341fb8a7c29585335dab04.1672174189.git.nabijaczleweli@nabijaczleweli.xyz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
ipu_src_rect_width() was introduced to support odd screen resolutions
such as 1366x768 by internally rounding up primary plane width to a
multiple of 8 and compensating with reduced horizontal blanking.
This also caused overlay plane width to be rounded up, which was not
intended. Fix overlay plane width by limiting the rounding up to the
primary plane.
drm_rect_width(&new_state->src) >> 16 is the same value as
drm_rect_width(dst) because there is no plane scaling support.
Fixes: 94dfec48fc ("drm/imx: Add 8 pixel alignment fix")
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20221108141420.176696-1-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221108141420.176696-1-p.zabel@pengutronix.de
Tested-by: Ian Ray <ian.ray@ge.com>
(cherry picked from commit 4333472f8d)
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
If the controller is suspended by runtime PM, the clock is already
disabled, so do not try to disable it again during removal. Use
pm_runtime_disable() to flush any pending runtime PM transitions.
Fixes: 9a8e1e8cc2 ("mmc: sunxi: Add runtime_pm support")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220810022509.43743-1-samuel@sholland.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Commands such as kmem, kwork, lock, sched, trace and timechart depend on
libtraceevent, these commands need to be isolated using HAVE_LIBTRACEEVENT
macro when cmdlist generation.
The output of the generate-cmdlist.sh script is as follows:
# ./util/generate-cmdlist.sh
/* Automatically generated by ./util/generate-cmdlist.sh */
struct cmdname_help
{
char name[16];
char help[80];
};
static struct cmdname_help common_cmds[] = {
{"annotate", "Read perf.data (created by perf record) and display annotated code"},
{"archive", "Create archive with object files with build-ids found in perf.data file"},
{"bench", "General framework for benchmark suites"},
{"buildid-cache", "Manage build-id cache."},
{"buildid-list", "List the buildids in a perf.data file"},
{"c2c", "Shared Data C2C/HITM Analyzer."},
{"config", "Get and set variables in a configuration file."},
{"daemon", "Run record sessions on background"},
{"data", "Data file related processing"},
{"diff", "Read perf.data files and display the differential profile"},
{"evlist", "List the event names in a perf.data file"},
{"ftrace", "simple wrapper for kernel's ftrace functionality"},
{"inject", "Filter to augment the events stream with additional information"},
{"iostat", "Show I/O performance metrics"},
{"kallsyms", "Searches running kernel for symbols"},
{"kvm", "Tool to trace/measure kvm guest os"},
{"list", "List all symbolic event types"},
{"mem", "Profile memory accesses"},
{"record", "Run a command and record its profile into perf.data"},
{"report", "Read perf.data (created by perf record) and display the profile"},
{"script", "Read perf.data (created by perf record) and display trace output"},
{"stat", "Run a command and gather performance counter statistics"},
{"test", "Runs sanity tests."},
{"top", "System profiling tool."},
{"version", "display the version of perf binary"},
#ifdef HAVE_LIBELF_SUPPORT
{"probe", "Define new dynamic tracepoints"},
#endif /* HAVE_LIBELF_SUPPORT */
#if defined(HAVE_LIBTRACEEVENT) && (defined(HAVE_LIBAUDIT_SUPPORT) || defined(HAVE_SYSCALL_TABLE_SUPPORT))
{"trace", "strace inspired tool"},
#endif /* HAVE_LIBTRACEEVENT && (HAVE_LIBAUDIT_SUPPORT || HAVE_SYSCALL_TABLE_SUPPORT) */
#ifdef HAVE_LIBTRACEEVENT
{"kmem", "Tool to trace/measure kernel memory properties"},
{"kwork", "Tool to trace/measure kernel work properties (latencies)"},
{"lock", "Analyze lock events"},
{"sched", "Tool to trace/measure scheduler properties (latencies)"},
{"timechart", "Tool to visualize total system behavior during a workload"},
#endif /* HAVE_LIBTRACEEVENT */
};
Fixes: 378ef0f5d9 ("perf build: Use libtraceevent from the system")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221226085703.95081-1-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Since the definition of 'struct perf_sample' has been moved to sample.h,
we need to include this header file to fix the build error as follows:
arch/riscv/util/unwind-libdw.c: In function 'libdw__arch_set_initial_registers':
arch/riscv/util/unwind-libdw.c:12:50: error: invalid use of undefined type 'struct perf_sample'
12 | struct regs_dump *user_regs = &ui->sample->user_regs;
| ^~
Fixes: 9823147da6 ("perf tools: Move 'struct perf_sample' to a separate header file to disentangle headers")
Signed-off-by: Eric Lin <eric.lin@sifive.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: greentime.hu@sifive.com
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: linux-riscv@lists.infradead.org
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vincent Chen <vincent.chen@sifive.com>
Link: https://lore.kernel.org/r/20221231052731.24908-1-eric.lin@sifive.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit 62d89a7d49 ("video: fbdev: matroxfb: set maxvram of vbG200eW to
the same as vbG200 to avoid black screen") accidently decreases the
maximum memory size for the Matrox G200eW (102b:0532) from 8 MB to 1 MB
by missing one zero. This caused the driver initialization to fail with
the messages below, as the minimum required VRAM size is 2 MB:
[ 9.436420] matroxfb: Matrox MGA-G200eW (PCI) detected
[ 9.444502] matroxfb: cannot determine memory size
[ 9.449316] matroxfb: probe of 0000:0a:03.0 failed with error -1
So, add the missing 0 to make it the intended 16 MB. Successfully tested on
the Dell PowerEdge R910/0KYD3D, BIOS 2.10.0 08/29/2013, that the warning is
gone.
While at it, add a leading 0 to the maxdisplayable entry, so it’s aligned
properly. The value could probably also be increased from 8 MB to 16 MB, as
the G200 uses the same values, but I have not checked any datasheet.
Note, matroxfb is obsolete and superseded by the maintained DRM driver
mga200, which is used by default on most systems where both drivers are
available. Therefore, on most systems it was only a cosmetic issue.
Fixes: 62d89a7d49 ("video: fbdev: matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen")
Link: https://lore.kernel.org/linux-fbdev/972999d3-b75d-5680-fcef-6e6905c52ac5@suse.de/T/#mb6953a9995ebd18acc8552f99d6db39787aec775
Cc: it+linux-fbdev@molgen.mpg.de
Cc: Z. Liu <liuzx@knownsec.com>
Cc: Rich Felker <dalias@libc.org>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Helge Deller <deller@gmx.de>
The drm_sched_entity_kill() is invoked twice by drm_sched_entity_destroy()
while userspace process is exiting or being killed. First time it's invoked
when sched entity is flushed and second time when entity is released. This
causes a lockup within wait_for_completion(entity_idle) due to how completion
API works.
Calling wait_for_completion() more times than complete() was invoked is a
error condition that causes lockup because completion internally uses
counter for complete/wait calls. The complete_all() must be used instead
in such cases.
This patch fixes lockup of Panfrost driver that is reproducible by killing
any application in a middle of 3d drawing operation.
Fixes: 2fdb8a8f07 ("drm/scheduler: rework entity flush, kill and fini")
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://patchwork.freedesktop.org/patch/msgid/20221123001303.533968-1-dmitry.osipenko@collabora.com
The virtio_gpu_object_shmem_init() will alloc memory and save it in
@ents, so when virtio_gpu_array_alloc() fails, this memory should be
freed, this patch fixes it.
Fixes: e7fef09233 ("drm/virtio: Simplify error handling of virtio_gpu_object_create()")
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221109091905.55451-1-xiujianfeng@huawei.com
When adding/deleting large number of elements in one step in ipset, it can
take a reasonable amount of time and can result in soft lockup errors. The
patch 5f7b51bf09 ("netfilter: ipset: Limit the maximal range of
consecutive elements to add/delete") tried to fix it by limiting the max
elements to process at all. However it was not enough, it is still possible
that we get hung tasks. Lowering the limit is not reasonable, so the
approach in this patch is as follows: rely on the method used at resizing
sets and save the state when we reach a smaller internal batch limit,
unlock/lock and proceed from the saved state. Thus we can avoid long
continuous tasks and at the same time removed the limit to add/delete large
number of elements in one step.
The nfnl mutex is held during the whole operation which prevents one to
issue other ipset commands in parallel.
Fixes: 5f7b51bf09 ("netfilter: ipset: Limit the maximal range of consecutive elements to add/delete")
Reported-by: syzbot+9204e7399656300bf271@syzkaller.appspotmail.com
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The hash:net,port,net set type supports /0 subnets. However, the patch
commit 5f7b51bf09 titled "netfilter: ipset: Limit the maximal range
of consecutive elements to add/delete" did not take into account it and
resulted in an endless loop. The bug is actually older but the patch
5f7b51bf09 brings it out earlier.
Handle /0 subnets properly in hash:net,port,net set types.
Fixes: 5f7b51bf09 ("netfilter: ipset: Limit the maximal range of consecutive elements to add/delete")
Reported-by: Марк Коренберг <socketpair@gmail.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
There is an issue with the checking of the return value of
'of_get_mac_address', which returns 0 on success and negative value on
failure. The driver interpretated the result the opposite way. Therefore
if there was a MAC address defined in the DT, then the driver was
generating a random MAC address otherwise it would use address 0.
Fix this by checking correctly the return value of 'of_get_mac_address'
Fixes: b74ef9f9cb ("net: sparx5: Do not use mac_addr uninitialized in mchp_sparx5_probe()")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
