[LU-1714] crash upon loading libcfs module

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0, Lustre 2.1.5
• Labels: patch
• Environment: debug kernel & lustre with LU-1201
• Severity: 3
• Assignee: Emoly Liu
• Reporter: Alexander Boyko

Description

RIP: 0010:[<ffffffffa06a2807>]  [<ffffffffa06a2807>] cfs_crypto_hash_digest+0xf6/0x166 [libcfs]
RSP: 0018:ffff88007c5fbda8  EFLAGS: 00010293
RAX: ffffea0001a55e00 RBX: ffff880078640000 RCX: 0000000087654321
RDX: 0000000000000000 RSI: ffffffffa06c6398 RDI: ffff880078640000
RBP: ffff88007c5fbe28 R08: 0000000000000000 R09: d84156c5635688c0
R10: d84156c5635688c0 R11: 0000000000000020 R12: 0000000000000000
R13: ffff88007c5fbe78 R14: 0000000000020000 R15: ffff88007c5fbe74
FS:  00007f2ef3eb6700(0000) GS:ffff880005000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f4777fa5000 CR3: 000000007c62c000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process insmod (pid: 8489, threadinfo ffff88007c5fa000, task ffff88007c6f00c0)
Stack:
 0000000000000000 0000000000000000 0000000000000000 0000000000000000
<0> 0000000000000000 0000000000000000 ffff88007c321988 0000000000000000
<0> 00007f2ef1eee010 ffffffffa06c6390 ffff88007c5fbe28 0000000000000000
Call Trace:
 [<ffffffffa06a29c8>] cfs_crypto_register+0x151/0x35a [libcfs]
 [<ffffffff8151cbcb>] ? _spin_unlock+0x2b/0x40
 [<ffffffffa06b3120>] ? cfs_wi_sched_create+0x3bf/0x4d4 [libcfs]
 [<ffffffffa06a5d34>] ? init_libcfs_module+0x0/0x377 [libcfs]
 [<ffffffffa06a5d34>] ? init_libcfs_module+0x0/0x377 [libcfs]
 [<ffffffffa06a5f5f>] init_libcfs_module+0x22b/0x377 [libcfs]
 [<ffffffff8100204c>] do_one_initcall+0x3c/0x1d0
 [<ffffffff810c1333>] sys_init_module+0xe3/0x260
 [<ffffffff8100b0b2>] system_call_fastpath+0x16/0x1b
Code: c1 e8 0c 48 8d 0c c5 00 00 00 00 48 c1 e0 06 48 29 c8 48 b9 00 00 00 00 00 ea ff ff 48 8d 04 08 b9 21 43 65 87 48 39 4d 80 74 04 <0f> 0b eb fe f6 c2 01 74 04 0f 0b eb fe 83 e2 03 48 09 c2 48 89 
RIP  [<ffffffffa06a2807>] cfs_crypto_hash_digest+0xf6/0x166 [libcfs]
 RSP <ffff88007c5fbda8>
---[ end trace 90f8b1994767d769 ]---
Kernel panic - not syncing: Fatal exception
Pid: 8489, comm: insmod Tainted: G      D    ----------------   2.6.32-220.7.1.el6.lustre.2015.x86_64.debug #1
Call Trace:
 [<ffffffff81518f20>] ? panic+0x78/0x148
 [<ffffffff8151e564>] ? oops_end+0xe4/0x100
 [<ffffffff8100f3bb>] ? die+0x5b/0x90
 [<ffffffff8151dc54>] ? do_trap+0xc4/0x160
 [<ffffffff8100d005>] ? do_invalid_op+0xa5/0xb0
 [<ffffffff8100cff5>] ? do_invalid_op+0x95/0xb0
 [<ffffffffa06a2807>] ? cfs_crypto_hash_digest+0xf6/0x166 [libcfs]
 [<ffffffff8151c661>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff8100bf9b>] ? invalid_op+0x1b/0x20
 [<ffffffffa06a2807>] ? cfs_crypto_hash_digest+0xf6/0x166 [libcfs]
 [<ffffffffa06a27d7>] ? cfs_crypto_hash_digest+0xc6/0x166 [libcfs]
 [<ffffffffa06a29c8>] ? cfs_crypto_register+0x151/0x35a [libcfs]
 [<ffffffff8151cbcb>] ? _spin_unlock+0x2b/0x40
 [<ffffffffa06b3120>] ? cfs_wi_sched_create+0x3bf/0x4d4 [libcfs]
 [<ffffffffa06a5d34>] ? init_libcfs_module+0x0/0x377 [libcfs]
 [<ffffffffa06a5d34>] ? init_libcfs_module+0x0/0x377 [libcfs]
 [<ffffffffa06a5f5f>] ? init_libcfs_module+0x22b/0x377 [libcfs]
 [<ffffffff8100204c>] ? do_one_initcall+0x3c/0x1d0
 [<ffffffff810c1333>] ? sys_init_module+0xe3/0x260
 [<ffffffff8100b0b2>] ? system_call_fastpath+0x16/0x1b

Issue Links

• duplicates: LU-2427 Hit "kernel BUG" when running on debug kernel during recovery
• is related to: LU-6020 Bugfixes for GSS/Kerberos