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425c32750b
Namjae reported the following:
I have a simple file copy test with windows 11 client, and get the
following error message.
[ 894.140312] ------------[ cut here ]------------
[ 894.140316] WARNING: CPU: 1 PID: 116 at
fs/smb/server/transport_rdma.c:642 recv_done+0x308/0x360 [ksmbd]
[ 894.140335] Modules linked in: ksmbd cmac nls_utf8 nls_ucs2_utils
libarc4 nls_iso8859_1 snd_hda_codec_intelhdmi snd_hda_codec_hdmi
snd_hda_codec_alc882 snd_hda_codec_realtek_lib snd_hda_codec_generic
rpcrdma intel_rapl_msr rdma_ucm intel_rapl_common snd_hda_intel
ib_iser snd_hda_codec intel_uncore_frequency
intel_uncore_frequency_common snd_hda_core intel_tcc_cooling
x86_pkg_temp_thermal intel_powerclamp snd_intel_dspcfg libiscsi
snd_intel_sdw_acpi coretemp scsi_transport_iscsi snd_hwdep kvm_intel
i915 snd_pcm ib_umad rdma_cm snd_seq_midi ib_ipoib kvm
snd_seq_midi_event iw_cm snd_rawmidi ghash_clmulni_intel ib_cm
aesni_intel snd_seq mei_hdcp drm_buddy rapl snd_seq_device eeepc_wmi
asus_wmi snd_timer intel_cstate ttm snd drm_client_lib
drm_display_helper sparse_keymap soundcore platform_profile mxm_wmi
wmi_bmof joydev mei_me cec acpi_pad mei rc_core drm_kms_helper
input_leds i2c_algo_bit mac_hid sch_fq_codel msr parport_pc ppdev lp
nfsd parport auth_rpcgss binfmt_misc nfs_acl lockd grace drm sunrpc
ramoops efi_pstore
[ 894.140414] reed_solomon pstore_blk pstore_zone autofs4 btrfs
blake2b_generic xor raid6_pq mlx5_ib ib_uverbs ib_core hid_generic uas
usbhid hid r8169 i2c_i801 usb_storage i2c_mux i2c_smbus mlx5_core
realtek ahci mlxfw psample libahci video wmi [last unloaded: ksmbd]
[ 894.140442] CPU: 1 UID: 0 PID: 116 Comm: kworker/1:1H Tainted: G
W 6.18.0-rc5+ #1 PREEMPT(voluntary)
[ 894.140447] Tainted: [W]=WARN
[ 894.140448] Hardware name: System manufacturer System Product
Name/H110M-K, BIOS 3601 12/12/2017
[ 894.140450] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
[ 894.140476] RIP: 0010:recv_done+0x308/0x360 [ksmbd]
[ 894.140487] Code: 2e f2 ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc
cc cc cc 41 8b 55 10 49 8b 75 08 b9 02 00 00 00 e8 ed f4 f2 c3 e9 59
fd ff ff <0f> 0b e9 02 ff ff ff 49 8b 74 24 28 49 8d 94 24 c8 00 00 00
bf 00
[ 894.140490] RSP: 0018:ffffa47ec03f3d78 EFLAGS: 00010293
[ 894.140492] RAX: 0000000000000001 RBX: ffff8eb84c818000 RCX: 000000010002ba00
[ 894.140494] RDX: 0000000037600001 RSI: 0000000000000083 RDI: ffff8eb92ec9ee40
[ 894.140496] RBP: ffffa47ec03f3da0 R08: 0000000000000000 R09: 0000000000000010
[ 894.140498] R10: ffff8eb801705680 R11: fefefefefefefeff R12: ffff8eb7454b8810
[ 894.140499] R13: ffff8eb746deb988 R14: ffff8eb746deb980 R15: ffff8eb84c818000
[ 894.140501] FS: 0000000000000000(0000) GS:ffff8eb9a7355000(0000)
knlGS:0000000000000000
[ 894.140503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 894.140505] CR2: 00002d9401d60018 CR3: 0000000010a40006 CR4: 00000000003726f0
[ 894.140507] Call Trace:
[ 894.140509] <TASK>
[ 894.140512] __ib_process_cq+0x8e/0x190 [ib_core]
[ 894.140530] ib_cq_poll_work+0x2f/0x90 [ib_core]
[ 894.140545] process_scheduled_works+0xd4/0x430
[ 894.140554] worker_thread+0x12a/0x270
[ 894.140558] kthread+0x10d/0x250
[ 894.140564] ? __pfx_worker_thread+0x10/0x10
[ 894.140567] ? __pfx_kthread+0x10/0x10
[ 894.140571] ret_from_fork+0x11a/0x160
[ 894.140574] ? __pfx_kthread+0x10/0x10
[ 894.140577] ret_from_fork_asm+0x1a/0x30
[ 894.140584] </TASK>
[ 894.140585] ---[ end trace 0000000000000000 ]---
[ 894.154363] ------------[ cut here ]------------
[ 894.154367] WARNING: CPU: 3 PID: 5543 at
fs/smb/server/transport_rdma.c:1728 smb_direct_cm_handler+0x121/0x130
[ksmbd]
[ 894.154384] Modules linked in: ksmbd cmac nls_utf8 nls_ucs2_utils
libarc4 nls_iso8859_1 snd_hda_codec_intelhdmi snd_hda_codec_hdmi
snd_hda_codec_alc882 snd_hda_codec_realtek_lib snd_hda_codec_generic
rpcrdma intel_rapl_msr rdma_ucm intel_rapl_common snd_hda_intel
ib_iser snd_hda_codec intel_uncore_frequency
intel_uncore_frequency_common snd_hda_core intel_tcc_cooling
x86_pkg_temp_thermal intel_powerclamp snd_intel_dspcfg libiscsi
snd_intel_sdw_acpi coretemp scsi_transport_iscsi snd_hwdep kvm_intel
i915 snd_pcm ib_umad rdma_cm snd_seq_midi ib_ipoib kvm
snd_seq_midi_event iw_cm snd_rawmidi ghash_clmulni_intel ib_cm
aesni_intel snd_seq mei_hdcp drm_buddy rapl snd_seq_device eeepc_wmi
asus_wmi snd_timer intel_cstate ttm snd drm_client_lib
drm_display_helper sparse_keymap soundcore platform_profile mxm_wmi
wmi_bmof joydev mei_me cec acpi_pad mei rc_core drm_kms_helper
input_leds i2c_algo_bit mac_hid sch_fq_codel msr parport_pc ppdev lp
nfsd parport auth_rpcgss binfmt_misc nfs_acl lockd grace drm sunrpc
ramoops efi_pstore
[ 894.154456] reed_solomon pstore_blk pstore_zone autofs4 btrfs
blake2b_generic xor raid6_pq mlx5_ib ib_uverbs ib_core hid_generic uas
usbhid hid r8169 i2c_i801 usb_storage i2c_mux i2c_smbus mlx5_core
realtek ahci mlxfw psample libahci video wmi [last unloaded: ksmbd]
[ 894.154483] CPU: 3 UID: 0 PID: 5543 Comm: kworker/3:6 Tainted: G
W 6.18.0-rc5+ #1 PREEMPT(voluntary)
[ 894.154487] Tainted: [W]=WARN
[ 894.154488] Hardware name: System manufacturer System Product
Name/H110M-K, BIOS 3601 12/12/2017
[ 894.154490] Workqueue: ib_cm cm_work_handler [ib_cm]
[ 894.154499] RIP: 0010:smb_direct_cm_handler+0x121/0x130 [ksmbd]
[ 894.154507] Code: e7 e8 13 b1 ef ff 44 89 e1 4c 89 ee 48 c7 c7 80
d7 59 c1 48 89 c2 e8 2e 4d ef c3 31 c0 5b 41 5c 41 5d 41 5e 5d c3 cc
cc cc cc <0f> 0b eb a5 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
90 90
[ 894.154510] RSP: 0018:ffffa47ec1b27c00 EFLAGS: 00010206
[ 894.154512] RAX: ffffffffc1304e00 RBX: ffff8eb89ae50880 RCX: 0000000000000000
[ 894.154514] RDX: ffff8eb730960000 RSI: ffffa47ec1b27c60 RDI: ffff8eb7454b9400
[ 894.154515] RBP: ffffa47ec1b27c20 R08: 0000000000000002 R09: ffff8eb730b8c18b
[ 894.154517] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000009
[ 894.154518] R13: ffff8eb7454b9400 R14: ffff8eb7454b8810 R15: ffff8eb815c43000
[ 894.154520] FS: 0000000000000000(0000) GS:ffff8eb9a7455000(0000)
knlGS:0000000000000000
[ 894.154522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 894.154523] CR2: 00007fe1310e99d0 CR3: 0000000010a40005 CR4: 00000000003726f0
[ 894.154525] Call Trace:
[ 894.154527] <TASK>
[ 894.154530] cma_cm_event_handler+0x27/0xd0 [rdma_cm]
[ 894.154541] cma_ib_handler+0x99/0x2e0 [rdma_cm]
[ 894.154551] cm_process_work+0x28/0xf0 [ib_cm]
[ 894.154557] cm_queue_work_unlock+0x41/0xf0 [ib_cm]
[ 894.154563] cm_work_handler+0x2eb/0x25b0 [ib_cm]
[ 894.154568] ? pwq_activate_first_inactive+0x52/0x70
[ 894.154572] ? pwq_dec_nr_in_flight+0x244/0x330
[ 894.154575] process_scheduled_works+0xd4/0x430
[ 894.154579] worker_thread+0x12a/0x270
[ 894.154581] kthread+0x10d/0x250
[ 894.154585] ? __pfx_worker_thread+0x10/0x10
[ 894.154587] ? __pfx_kthread+0x10/0x10
[ 894.154590] ret_from_fork+0x11a/0x160
[ 894.154593] ? __pfx_kthread+0x10/0x10
[ 894.154596] ret_from_fork_asm+0x1a/0x30
[ 894.154602] </TASK>
[ 894.154603] ---[ end trace 0000000000000000 ]---
[ 894.154931] ksmbd: smb_direct: disconnected
[ 894.157278] ksmbd: smb_direct: disconnected
I guess sc->first_error is already set and sc->status
is thus unexpected, so this should avoid the WARN[_ON]_ONCE()
if sc->first_error is already set and have a usable error path.
While there set sc->first_error as soon as possible.
v1 of this patch revealed the real problem with this message:
[ 309.560973] expected[NEGOTIATE_NEEDED] != RDMA_CONNECT_RUNNING
first_error=0 local=192.168.0.200:445 remote=192.168.0.100:60445
[ 309.561034] WARNING: CPU: 2 PID: 78 at transport_rdma.c:643
recv_done+0x2fa/0x3d0 [ksmbd]
Some drivers (at least mlx5_ib) might post a recv completion before
RDMA_CM_EVENT_ESTABLISHED, so we need to adjust our expectation in that
case.
Fixes:
|
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.