netdev - BUG: sleeping function called from invalid context at mm/slab.h:421

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Date:   Tue, 13 Nov 2018 22:03:38 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     netdev@...r.kernel.org
Cc:     Roman Gushchin <guro@...com>, ast@...nel.org,
        Daniel Borkmann <daniel@...earbox.net>, kafai@...com
Subject: BUG: sleeping function called from invalid context at mm/slab.h:421

While running kernel selftests bpf test_cgroup_storage test this
kernel BUG reported every time on all devices running Linux -next
4.20.0-rc2-next-20181113 (from 4.19.0-rc5-next-20180928).
This kernel BUG log is from x86_64 machine.

Do you see at your end ?

[   73.047526] BUG: sleeping function called from invalid context at
/srv/oe/build/tmp-rpb-glibc/work-shared/intel-corei7-64/kernel-source/mm/slab.h:421
[   73.060915] in_atomic(): 1, irqs_disabled(): 0, pid: 3157, name:
test_cgroup_sto
[   73.068342] INFO: lockdep is turned off.
[   73.072293] CPU: 2 PID: 3157 Comm: test_cgroup_sto Not tainted
4.20.0-rc2-next-20181113 #1
[   73.080548] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
2.0b 07/27/2017
[   73.088018] Call Trace:
[   73.090463]  dump_stack+0x70/0xa5
[   73.093783]  ___might_sleep+0x152/0x240
[   73.097619]  __might_sleep+0x4a/0x80
[   73.101191]  __kmalloc_node+0x1cf/0x2f0
[   73.105031]  ? cgroup_storage_update_elem+0x46/0x90
[   73.109909]  cgroup_storage_update_elem+0x46/0x90
[   73.114608]  map_update_elem+0x4a1/0x4c0
[   73.118534]  __x64_sys_bpf+0x124/0x280
[   73.122286]  do_syscall_64+0x4f/0x190
[   73.125952]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   73.131004] RIP: 0033:0x7f46b93ea7f9
[   73.134581] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00
00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24
08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4f e6 2b 00 f7 d8 64 89
01 48
[   73.153318] RSP: 002b:00007fffc6595858 EFLAGS: 00000206 ORIG_RAX:
0000000000000141
[   73.160876] RAX: ffffffffffffffda RBX: 00000000014a0260 RCX: 00007f46b93ea7f9
[   73.167999] RDX: 0000000000000048 RSI: 00007fffc65958a0 RDI: 0000000000000002
[   73.175124] RBP: 00007fffc6595870 R08: 00007fffc65958a0 R09: 00007fffc65958a0
[   73.182246] R10: 00007fffc65958a0 R11: 0000000000000206 R12: 0000000000000003
[   73.189369] R13: 0000000000000004 R14: 0000000000000005 R15: 0000000000000006
selftests: bpf: test_cgroup_storage

Please find full test log,
https://lkft.validation.linaro.org/scheduler/job/506640#L2874

Thank you.
Best regards
Naresh Kamboju