[Lustre-discuss] quotacheck blows up MDT

[Nirmal Seenu]

I was not able to get quota working on Lustre 1.6.7.1 either. I got the 
following stack trace on all the OSS servers when I was trying to do a 
quota check with the latest Lustre Patched kernel.

Apr 21 15:49:11 lustre2 kernel: LustreError: 
15591:0:(client.c:547:ptlrpc_prep_req_pool()) ASSERTION(imp != 
LP_POISON) failed
Apr 21 15:49:11 lustre2 kernel: LustreError: 
15591:0:(client.c:547:ptlrpc_prep_req_pool()) LBUG
Apr 21 15:49:11 lustre2 kernel: Lustre: 
15591:0:(linux-debug.c:222:libcfs_debug_dumpstack()) showing stack for 
process 15591
Apr 21 15:49:11 lustre2 kernel: quotacheck    R  running task       0 
15591      1         15592 15590 (L-TLB)
Apr 21 15:49:11 lustre2 kernel:  0000000000000000 0000000000000001 
0000000000000086 0000000000000001
Apr 21 15:49:11 lustre2 kernel:  ffff8100881d19d0 ffffffff8002e15a 
0000000000000046 ffff8100881d1a60
Apr 21 15:49:11 lustre2 kernel:  ffffffff887c43b0 ffffffff8049a5c0 
0000000000000060 ffffffff887df9b0
Apr 21 15:49:11 lustre2 kernel: Call Trace:
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8002e15a>] __wake_up+0x38/0x4f
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8009ddc3>] 
autoremove_wake_function+0x9/0x2e
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800891f6>] 
__wake_up_common+0x3e/0x68
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8002e15a>] __wake_up+0x38/0x4f
Apr 21 15:49:11 lustre2 last message repeated 2 times
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8008fdc9>] printk+0x52/0xbd
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800891f6>] 
__wake_up_common+0x3e/0x68
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800891f6>] 
__wake_up_common+0x3e/0x68
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8008fd2b>] vprintk+0x290/0x2dc
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800a54eb>] 
kallsyms_lookup+0xc2/0x17b
Apr 21 15:49:11 lustre2 last message repeated 3 times
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8006b77d>] 
printk_address+0x9f/0xab
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8008fd00>] vprintk+0x265/0x2dc
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8008fdc9>] printk+0x52/0xbd
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800a3072>] 
module_text_address+0x33/0x3c
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8009c34c>] 
kernel_text_address+0x1a/0x26
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8006b463>] dump_trace+0x211/0x23a
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8006b4c0>] show_trace+0x34/0x47
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8006b5c5>] _show_stack+0xdb/0xea
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff887b9ada>] 
:libcfs:lbug_with_loc+0x7a/0xd0
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff887c1c40>] 
:libcfs:tracefile_init+0x0/0x110
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff88904739>] 
:ptlrpc:ptlrpc_prep_req_pool+0xc9/0x6b0
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8002ca21>] 
mntput_no_expire+0x19/0x89
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff88904d31>] 
:ptlrpc:ptlrpc_prep_req+0x11/0x20
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff88a0d43e>] 
:lquota:target_quotacheck_thread+0x15e/0x3e0
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff80031caa>] 
end_buffer_read_sync+0x0/0x22
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff800b4382>] 
audit_syscall_exit+0x31b/0x336
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8005dfb1>] child_rip+0xa/0x11
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff88a0d2e0>] 
:lquota:target_quotacheck_thread+0x0/0x3e0
Apr 21 15:49:11 lustre2 kernel:  [<ffffffff8005dfa7>] child_rip+0x0/0x11
Apr 21 15:49:11 lustre2 kernel:

Nirmal