On 01/24/2011 01:21 AM, James Bottomley wrote:
On Sun, 2011-01-23 at 11:41 +0100, Rudy Zijlstra wrote:
Dears,
I got the following crash by:
- cp several G onto a raid 5 on a Marvell 88SE6480//// based controller
while also doing
- cp * ../test/ on the same raid.
I strongly suspect mvsas to be the cause
I've got to ask why?
cause the 88SE6480 has been giving grief for a long time, and i was
loading that one specifically.
you may well be right (i do not read crash info i fear), but a bit
strange to have NFS crash when nfs was not much used at that moment
Rudy
Please keep me on cc, as i am not subscribed to linux-scsi
Thanks,
Rudy
The crash:
[ 2821.392849] BUG: unable to handle kernel paging request at
000000000000bbbb
[ 2821.393697] IP: [<ffffffff815a1b5c>] cache_revisit_request+0xab/0x105
[ 2821.393697] PGD 78e4d067 PUD 78c9a067 PMD 0
[ 2821.393697] Oops: 0000 [#1] SMP
[ 2821.393697] last sysfs file:
/sys/bus/pci/drivers/megaraid_sas/release_date
[ 2821.393697] CPU 2
[ 2821.393697] Modules linked in: parport_pc parport rc_tt_1500
ir_lirc_codec lirc_dev ir_sony_decoder ir_jvc_decoder ir_rc6_decoder
budget_ci lnbp21 budget_core saa7146 ir_rc5_decoder ir_nec_decoder
ttpci_eeprom tda1004x ir_core stb6100 tda10023 stv0297 stb0899 stv0299
dvb_core tda827x floppy
[ 2821.393697]
[ 2821.393697] Pid: 1105, comm: rpc.mountd Not tainted 2.6.37 #1
X7SB4/E/X7SB4/E
[ 2821.393697] RIP: 0010:[<ffffffff815a1b5c>] [<ffffffff815a1b5c>]
cache_revisit_request+0xab/0x105
[ 2821.393697] RSP: 0018:ffff880069e45c18 EFLAGS: 00010206
[ 2821.393697] RAX: 000000000000bbbb RBX: ffff880069e45c18 RCX:
000000000000bbbb
[ 2821.393697] RDX: fffffffc4003d6e4 RSI: 0000000000000000 RDI:
ffffffff81c73774
[ 2821.393697] RBP: ffff880069e45c38 R08: 00000000000000d0 R09:
0000000000000000
[ 2821.393697] R10: 0000000000000000 R11: e000000000000000 R12:
ffff88007adc9f00
[ 2821.393697] R13: ffff88007adc9f00 R14: ffff880069e7ee00 R15:
ffff88007adc9f20
[ 2821.393697] FS: 00007f0247a2a740(0000) GS:ffff88007fd00000(0000)
knlGS:0000000000000000
[ 2821.393697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2821.393697] CR2: 000000000000bbbb CR3: 000000007917a000 CR4:
00000000000406e0
[ 2821.393697] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 2821.393697] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 2821.393697] Process rpc.mountd (pid: 1105, threadinfo
ffff880069e44000, task ffff880072408750)
[ 2821.393697] Stack:
[ 2821.393697] ffff880069e45c18 ffff880069e45c18 ffff88007adc9f00
ffffffff81a39860
[ 2821.393697] PGD 78e4d067 PUD 78c9a067 PMD 0
[ 2821.393697] Oops: 0000 [#1] SMP
[ 2821.393697] last sysfs file:
/sys/bus/pci/drivers/megaraid_sas/release_date
[ 2821.393697] CPU 2
[ 2821.393697] Modules linked in: parport_pc parport rc_tt_1500
ir_lirc_codec lirc_dev ir_sony_decoder ir_jvc_decoder ir_rc6_decoder
budget_ci lnbp21 budget_core saa7146 ir_rc5_decoder ir_nec_decoder
ttpci_eeprom tda1004x ir_core stb6100 tda10023 stv0297 stb0899 stv0299
dvb_core tda827x floppy
[ 2821.393697]
[ 2821.393697] Pid: 1105, comm: rpc.mountd Not tainted 2.6.37 #1
X7SB4/E/X7SB4/E
[ 2821.393697] RIP: 0010:[<ffffffff815a1b5c>] [<ffffffff815a1b5c>]
cache_revisit_request+0xab/0x105
This says the bad deref occurred in the sunrpc authentication cache.
Nothing at all in the trace implicates mvsas ... in fact nothing even
remotely relates to it at all. It really looks like an NFS problem.
James
[ 2821.393697] RSP: 0018:ffff880069e45c18 EFLAGS: 00010206
[ 2821.393697] RAX: 000000000000bbbb RBX: ffff880069e45c18 RCX:
000000000000bbbb
[ 2821.393697] RDX: fffffffc4003d6e4 RSI: 0000000000000000 RDI:
ffffffff81c73774
[ 2821.393697] RBP: ffff880069e45c38 R08: 00000000000000d0 R09:
0000000000000000
[ 2821.393697] R10: 0000000000000000 R11: e000000000000000 R12:
ffff88007adc9f00
[ 2821.393697] R13: ffff88007adc9f00 R14: ffff880069e7ee00 R15:
ffff88007adc9f20
[ 2821.393697] FS: 00007f0247a2a740(0000) GS:ffff88007fd00000(0000)
knlGS:0000000000000000
[ 2821.393697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2821.393697] CR2: 000000000000bbbb CR3: 000000007917a000 CR4:
00000000000406e0
[ 2821.393697] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 2821.393697] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 2821.393697] Process rpc.mountd (pid: 1105, threadinfo
ffff880069e44000, task ffff880072408750)
[ 2821.393697] Stack:
[ 2821.393697] ffff880069e45c18 ffff880069e45c18 ffff88007adc9f00
ffffffff81a39860
[ 2821.393697] ffff880069e45c58 ffffffff815a2698 ffffffff81a39860
ffff880069e45d08
[ 2821.393697] ffff880069e45ca8 ffffffff815a2f80 ffffffff81c43df8
0000006781c43df8
[ 2821.393697] Call Trace:
[ 2821.393697] [<ffffffff815a2698>] cache_fresh_unlocked+0x1e/0x2e
[ 2821.393697] [<ffffffff815a2f80>] sunrpc_cache_update+0x15d/0x17d
[ 2821.393697] [<ffffffff811aadb8>] svc_export_update+0x29/0x2e
[ 2821.393697] [<ffffffff811ab2a4>] svc_export_parse+0x4e7/0x586
[ 2821.393697] [<ffffffff815a158d>] cache_do_downcall+0x3b/0x4c
[ 2821.393697] [<ffffffff815a1e1b>] cache_write+0xaf/0x129
[ 2821.393697] [<ffffffff815a1ec8>] cache_write_procfs+0x19/0x1b
[ 2821.393697] [<ffffffff81126ac0>] proc_reg_write+0x87/0xa6
[ 2821.393697] [<ffffffff8123df1d>] ? security_file_permission+0x29/0x2e
[ 2821.393697] [<ffffffff815a1eaf>] ? cache_write_procfs+0x0/0x1b
[ 2821.393697] [<ffffffff810de19f>] vfs_write+0xa9/0x105
[ 2821.393697] [<ffffffff810de2b1>] sys_write+0x45/0x69
[ 2821.393697] [<ffffffff81002a52>] system_call_fastpath+0x16/0x1b
[ 2821.393697] Code: 4c 89 47 08 49 89 38 48 89 50 10 48 89 50 18 48 8b
7d e0 48 89 57 08 48 89 78 10 48 89 58 18 48 89 55 e0 48 89 c8 48 85 c0
74 0b<48> 8b 08 4c 39 60 20 75 ef eb 93 89 35 a3 24 6d 00 48 c7 c7 74
[ 2821.393697] RIP [<ffffffff815a1b5c>] cache_revisit_request+0xab/0x105
[ 2821.393697] RSP<ffff880069e45c18>
[ 2821.393697] CR2: 000000000000bbbb
[ 2821.716219] ---[ end trace a4730c6e3ffc5077 ]---
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