CC OCFS2 maintainers for the BUG in v4.14-rc6.

On Sun, Oct 29, 2017 at 11:51:55PM +0100, Fengguang Wu wrote:
>Hi Linus,
>
>Up to now we see the below boot error/warnings when testing v4.14-rc6.
>
>They hit the RC release mainly due to various imperfections in 0day's
>auto bisection. So I manually list them here and CC the likely easy to
>debug ones to the corresponding maintainers in the followup emails.
>
>boot_successes: 4700
>boot_failures: 247
>
>BUG:kernel_hang_in_test_stage: 152
>BUG:kernel_reboot-without-warning_in_test_stage: 10
>BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/mutex.c: 1
>BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c: 3

There are 2 call paths that lead to this BUG:

[   41.456285] 
[   41.559269] Output log is /home/ocfs2test/ocfs2log/2017-10-25_09:33/single_run.log
[   41.559273] 
[   41.576824] mkfs.ocfs2 1.8.5
[   41.576828] 
[   47.713421] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:52
[   47.725763] in_atomic(): 1, irqs_disabled(): 0, pid: 4899, name: mkfs.ocfs2
[   47.735004] CPU: 1 PID: 4899 Comm: mkfs.ocfs2 Not tainted 4.14.0-rc6 #1
[   47.743854] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS SE5C610.86B.01.01.0008.021120151325 02/11/2015
[   47.756984] Call Trace:
[   47.761141]  dump_stack+0x63/0x86
[   47.766255]  ___might_sleep+0xf1/0x110
[   47.771809]  __might_sleep+0x4a/0x80
[   47.777124]  down_write+0x20/0x50
[   47.782095]  configfs_depend_item+0x3f/0xb0
[   47.788051]  o2nm_depend_item+0x18/0x20 [ocfs2_nodemanager]
[   47.795578]  o2hb_region_pin+0xbc/0x150 [ocfs2_nodemanager]
[   47.803101]  o2hb_register_callback+0x131/0x290 [ocfs2_nodemanager]
[   47.811402]  dlm_join_domain+0xbd/0x800 [ocfs2_dlm]
[   47.818139]  dlm_register_domain+0x2f8/0x3d0 [ocfs2_dlm]
[   47.825365]  o2cb_cluster_connect+0x171/0x285 [ocfs2_stack_o2cb]
[   47.833393]  ocfs2_cluster_connect+0x189/0x240 [ocfs2_stackglue]
[   47.841970]  ocfs2_cluster_connect_agnostic+0x3a/0x3c [ocfs2_stackglue]
[   47.850664]  ? 0xffffffffa006b000
[   47.855664]  user_dlm_register+0x2e/0xa0 [ocfs2_dlmfs]
[   47.862708]  dlmfs_mkdir+0x80/0x1a0 [ocfs2_dlmfs]
[   47.869267]  vfs_mkdir+0x10f/0x1b0
[   47.874354]  SyS_mkdir+0x6b/0xd0
[   47.879218]  entry_SYSCALL_64_fastpath+0x1a/0xa5
[   47.885627] RIP: 0033:0x7ff3d38b4407
[   47.890832] RSP: 002b:00007ffce4e1cef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[   47.900501] RAX: ffffffffffffffda RBX: 000055abe2b6b070 RCX: 00007ff3d38b4407
[   47.909704] RDX: ffffffffffffff30 RSI: 00000000000001ed RDI: 000055abe2b6a02c
[   47.918912] RBP: 000055abe0b20df2 R08: 000055abe2b65250 R09: 0000000000000026
[   47.928126] R10: 0000000000000370 R11: 0000000000000246 R12: 000055abe2b65250
[   47.937348] R13: 00007ffce4e1cf18 R14: 000055abe2b6a010 R15: 00007ffce4e1ee28
[   47.947178] o2dlm: Joining domain D764E616AA0846C3B0DF3A81F7333E91 
[   47.947181] ( 
[   47.955477] 1 

[  125.027591] 
[  125.034602] Test 46: bitmap_cpg change
[  125.034604] 
[  125.578546] mkfs ..... OK
[  125.578549] 
[  133.795387] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:52
[  133.806708] in_atomic(): 1, irqs_disabled(): 0, pid: 6277, name: mount.ocfs2
[  133.814884] CPU: 0 PID: 6277 Comm: mount.ocfs2 Not tainted 4.14.0-rc6 #1
[  133.822645] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS SE5C610.86B.01.01.0008.021120151325 02/11/2015
[  133.834591] Call Trace:
[  133.837612]  dump_stack+0x63/0x86
[  133.841601]  ___might_sleep+0xf1/0x110
[  133.846074]  __might_sleep+0x4a/0x80
[  133.850355]  down_write+0x20/0x50
[  133.854343]  configfs_depend_item+0x3f/0xb0
[  133.859309]  o2nm_depend_item+0x18/0x20 [ocfs2_nodemanager]
[  133.865825]  o2hb_region_pin+0xbc/0x150 [ocfs2_nodemanager]
[  133.872340]  o2hb_register_callback+0x131/0x290 [ocfs2_nodemanager]
[  133.879643]  dlm_join_domain+0xbd/0x800 [ocfs2_dlm]
[  133.885392]  dlm_register_domain+0x2f8/0x3d0 [ocfs2_dlm]
[  133.891635]  o2cb_cluster_connect+0x171/0x285 [ocfs2_stack_o2cb]
[  133.898663]  ocfs2_cluster_connect+0x189/0x240 [ocfs2_stackglue]
[  133.905740]  ocfs2_dlm_init+0x325/0x560 [ocfs2]
[  133.911132]  ? ocfs2_init_node_maps+0x50/0x50 [ocfs2]
[  133.917113]  ocfs2_fill_super+0xbf9/0x1270 [ocfs2]
[  133.922794]  ? vsnprintf+0x230/0x4b0
[  133.927114]  mount_bdev+0x178/0x1b0
[  133.931387]  ? ocfs2_initialize_super+0xfe0/0xfe0 [ocfs2]
[  133.938644]  ocfs2_mount+0x15/0x20 [ocfs2]
[  133.943560]  mount_fs+0x38/0x140
[  133.947508]  vfs_kern_mount+0x67/0x140
[  133.952038]  do_mount+0x1e0/0xcd0
[  133.956084]  SyS_mount+0x83/0xd0
[  133.960020]  entry_SYSCALL_64_fastpath+0x1a/0xa5
[  133.965524] RIP: 0033:0x7f2856b9020a
[  133.969862] RSP: 002b:00007fff480062a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[  133.978678] RAX: ffffffffffffffda RBX: 00007fff48006180 RCX: 00007f2856b9020a
[  133.987005] RDX: 0000561c83e796ae RSI: 0000561c8589a0b0 RDI: 0000561c8589a310
[  133.995347] RBP: 00007fff480050a0 R08: 0000561c8589a2b0 R09: 0000000000000020
[  134.003692] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[  134.012042] R13: 00000000000000ff R14: 0000561c8589a130 R15: 00007fff48004fa0
[  134.021494] o2dlm: Joining domain D764E616AA0846C3B0DF3A81F7333E91 
[  134.021496] ( 
[  134.021497] 1 

.config is attached.

Thanks,
Fengguang