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1403c8b147
When ib_cache_update return an error, we exit ib_cache_setup_one
instantly with no proper cleanup, even though before this we had
already successfully done gid_table_setup_one, that results in
the kernel WARN below.
Do proper cleanup using gid_table_cleanup_one before returning
the err in order to fix the issue.
WARNING: CPU: 4 PID: 922 at drivers/infiniband/core/cache.c:806 gid_table_release_one+0x181/0x1a0
Modules linked in:
CPU: 4 UID: 0 PID: 922 Comm: c_repro Not tainted 6.11.0-rc1+ #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:gid_table_release_one+0x181/0x1a0
Code: 44 8b 38 75 0c e8 2f cb 34 ff 4d 8b b5 28 05 00 00 e8 23 cb 34 ff 44 89 f9 89 da 4c 89 f6 48 c7 c7 d0 58 14 83 e8 4f de 21 ff <0f> 0b 4c 8b 75 30 e9 54 ff ff ff 48 8 3 c4 10 5b 5d 41 5c 41 5d 41
RSP: 0018:ffffc90002b835b0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff811c8527
RDX: 0000000000000000 RSI: ffffffff811c8534 RDI: 0000000000000001
RBP: ffff8881011b3d00 R08: ffff88810b3abe00 R09: 205d303839303631
R10: 666572207972746e R11: 72746e6520444947 R12: 0000000000000001
R13: ffff888106390000 R14: ffff8881011f2110 R15: 0000000000000001
FS: 00007fecc3b70800(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000340 CR3: 000000010435a001 CR4: 00000000003706b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? show_regs+0x94/0xa0
? __warn+0x9e/0x1c0
? gid_table_release_one+0x181/0x1a0
? report_bug+0x1f9/0x340
? gid_table_release_one+0x181/0x1a0
? handle_bug+0xa2/0x110
? exc_invalid_op+0x31/0xa0
? asm_exc_invalid_op+0x16/0x20
? __warn_printk+0xc7/0x180
? __warn_printk+0xd4/0x180
? gid_table_release_one+0x181/0x1a0
ib_device_release+0x71/0xe0
? __pfx_ib_device_release+0x10/0x10
device_release+0x44/0xd0
kobject_put+0x135/0x3d0
put_device+0x20/0x30
rxe_net_add+0x7d/0xa0
rxe_newlink+0xd7/0x190
nldev_newlink+0x1b0/0x2a0
? __pfx_nldev_newlink+0x10/0x10
rdma_nl_rcv_msg+0x1ad/0x2e0
rdma_nl_rcv_skb.constprop.0+0x176/0x210
netlink_unicast+0x2de/0x400
netlink_sendmsg+0x306/0x660
__sock_sendmsg+0x110/0x120
____sys_sendmsg+0x30e/0x390
___sys_sendmsg+0x9b/0xf0
? kstrtouint+0x6e/0xa0
? kstrtouint_from_user+0x7c/0xb0
? get_pid_task+0xb0/0xd0
? proc_fail_nth_write+0x5b/0x140
? __fget_light+0x9a/0x200
? preempt_count_add+0x47/0xa0
__sys_sendmsg+0x61/0xd0
do_syscall_64+0x50/0x110
entry_SYSCALL_64_after_hwframe+0x76/0x7e
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.