Hello,
I've got a problem with megaraid_sas driver and MegaRAID Storage
Manager. When I create new array I get following call trace:
[ 200.476010] BUG: unable to handle kernel NULL pointer dereference at
00000000000000b8
[ 200.524556] IP: [<ffffffff814f1b37>] scsi_device_put+0x17/0x60
[ 200.560613] PGD 5f794c067 PUD 6005de067 PMD 0
[ 200.588325] Oops: 0000 [#1] SMP
[ 200.608430] CPU 0
[ 200.619792] Modules linked in: iscsi_scst(O) scst_vdisk(O) scst(O)
libcrc32c ext2 drbd(O) iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi mpt2sas(O) scsi_transport_sas raid_class mptctl
mptbase bonding sg megaraid_sas(O) e1000e(O) usbserial uhci_hcd ohci_hcd
ehci_hcd aufs [last unloaded: megaraid_sas]
[ 200.790885]
[ 200.800069] Pid: 9569, comm: kworker/0:2 Tainted: G O
3.4.47-oe64-00000-gbfd7af9 #28 Intel Corporation S1200BTL/S1200BTL
[ 200.872854] RIP: 0010:[<ffffffff814f1b37>] [<ffffffff814f1b37>]
scsi_device_put+0x17/0x60
[ 200.953484] RSP: 0000:ffff88060052ddc0 EFLAGS: 00010286
[ 201.016078] RAX: 0000000000000000 RBX: ffff8805f7a7c800 RCX:
0000000000011af4
[ 201.090009] RDX: 0000000000011af3 RSI: 0000000000016558 RDI:
ffff8805f7a7c800
[ 201.163762] RBP: ffff88060052ddd0 R08: 0000000000011af3 R09:
ffff880606c02400
[ 201.237587] R10: ffffffff813d7bc5 R11: 00000000000163c0 R12:
ffff8805f7a7c800
[ 201.311429] R13: ffff8806007084f0 R14: ffff880600708000 R15:
0000000000000000
[ 201.385714] FS: 0000000000000000(0000) GS:ffff880607000000(0000)
knlGS:0000000000000000
[ 201.466474] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 201.533205] CR2: 00000000000000b8 CR3: 00000006005c6000 CR4:
00000000000407f0
[ 201.609236] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 201.684749] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 201.760140] Process kworker/0:2 (pid: 9569, threadinfo
ffff88060052c000, task ffff880602196740)
[ 201.845650] Stack:
[ 201.890482] ffff8805f7a7c800 0000000000000004 ffff88060052de50
ffffffffa005336c
[ 201.969957] ffff88060052de10 ffff8805fdb50500 0000000000000000
ffffffff81420b20
[ 202.049881] ffff880600d31800 ffff880606c10400 ffff88060052de50
ffffffff8141b1c0
[ 202.130160] Call Trace:
[ 202.180506] [<ffffffffa005336c>] megasas_aen_polling+0x28c/0x610
[megaraid_sas]
[ 202.262680] [<ffffffff81420b20>] ? bit_clear_margins+0x1b0/0x1b0
[ 202.336430] [<ffffffff8141b1c0>] ? fb_flashcursor+0x70/0x130
[ 202.407431] [<ffffffff810a030d>] process_one_work+0x10d/0x3a0
[ 202.479553] [<ffffffffa00530e0>] ? megasas_get_pd_list+0x400/0x400
[megaraid_sas]
[ 202.563224] [<ffffffff810a178a>] worker_thread+0xea/0x280
[ 202.634822] [<ffffffff810a16a0>] ? manage_workers+0x190/0x190
[ 202.707888] [<ffffffff810a5879>] kthread+0x99/0xb0
[ 202.774324] [<ffffffff817bb2e4>] kernel_thread_helper+0x4/0x10
[ 202.846916] [<ffffffff810a57e0>] ? flush_kthread_worker+0xb0/0xb0
[ 202.921219] [<ffffffff817bb2e0>] ? gs_change+0x13/0x13
[ 202.989922] Code: 48 89 df c7 04 24 00 00 00 00 e8 a5 8f c1 ff e9 38
fe ff ff 55 48 89 e5 48 83 ec 10 4c 89 64 24 08 48 89 1c 24 49 89 fc 48
8b 07 <48> 8b 80 b8 00 00 00 48 8b 18 48 85 db 74 0d 48 89 df e8 12 f3
[ 203.221134] RIP [<ffffffff814f1b37>] scsi_device_put+0x17/0x60
[ 203.293178] RSP <ffff88060052ddc0>
[ 203.350741] CR2: 00000000000000b8
[ 203.406629] ---[ end trace cad1ef4253f2e576 ]---
[ 203.470420] sdb: unknown partition table
[ 203.534405] sd 9:2:0:0: [sdb] Attached SCSI disk
[ 203.614925] BUG: unable to handle kernel paging request at
fffffffffffffff8
[ 203.691122] IP: [<ffffffff810a51ab>] kthread_data+0xb/0x20
[ 203.758475] PGD 1c0e067 PUD 1c0f067 PMD 0
[ 203.817698] Oops: 0000 [#2] SMP
[ 203.871369] CPU 0
[ 203.882735] Modules linked in: iscsi_scst(O) scst_vdisk(O) scst(O)
libcrc32c ext2 drbd(O) iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi mpt2sas(O) scsi_transport_sas raid_class mptctl
mptbase bonding sg megaraid_sas(O) e1000e(O) usbserial uhci_hcd ohci_hcd
ehci_hcd aufs [last unloaded: megaraid_sas]
[ 204.225102]
[ 204.270216] Pid: 9569, comm: kworker/0:2 Tainted: G D O
3.4.47-oe64-00000-gbfd7af9 #28 Intel Corporation S1200BTL/S1200BTL
[ 204.414715] RIP: 0010:[<ffffffff810a51ab>] [<ffffffff810a51ab>]
kthread_data+0xb/0x20
[ 204.499868] RSP: 0000:ffff88060052d928 EFLAGS: 00010092
[ 204.569199] RAX: 0000000000000000 RBX: ffff880602196ae0 RCX:
ffffffff81e59e40
[ 204.650245] RDX: 00000009ff57d93d RSI: 0000000000000000 RDI:
ffff880602196740
[ 204.730791] RBP: ffff88060052d928 R08: 0000000000000000 R09:
0000000000000000
[ 204.810732] R10: 0000000000000400 R11: 0000000000000000 R12:
0000000000000000
[ 204.890208] R13: ffff8806038c0000 R14: ffff8806070136c0 R15:
0000000000000000
[ 204.969578] FS: 0000000000000000(0000) GS:ffff880607000000(0000)
knlGS:0000000000000000
[ 205.055405] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 205.126798] CR2: fffffffffffffff8 CR3: 000000060135e000 CR4:
00000000000407f0
[ 205.206848] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 205.286878] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 205.366482] Process kworker/0:2 (pid: 9569, threadinfo
ffff88060052c000, task ffff880602196740)
[ 205.456472] Stack:
[ 205.505785] ffff88060052d958 ffffffff8109ec35 0000000000000009
ffff880602196ae0
[ 205.589335] 0000000000000009 ffff8806038c0000 ffff88060052da78
ffffffff817b16d9
[ 205.672548] ffff880602089130 ffff880602089100 000000000052d9a8
00000000000136c0
[ 205.754879] Call Trace:
[ 205.806271] [<ffffffff8109ec35>] wq_worker_sleeping+0x15/0x80
[ 205.878483] [<ffffffff817b16d9>] __schedule+0x579/0x860
[ 205.947281] [<ffffffff810f4d02>] ? call_rcu_sched+0x12/0x20
[ 206.018419] [<ffffffff817b1ce5>] schedule+0x45/0x60
[ 206.085229] [<ffffffff8108961b>] do_exit+0x67b/0x980
[ 206.152329] [<ffffffff810867d5>] ? kmsg_dump+0xb5/0x100
[ 206.220896] [<ffffffff817b3907>] oops_end+0xe7/0xf0
[ 206.286749] [<ffffffff81070a43>] no_context+0x1b3/0x2c0
[ 206.354142] [<ffffffff81070e0d>] __bad_area_nosemaphore+0x12d/0x210
[ 206.427816] [<ffffffff810b233f>] ? finish_task_switch+0x4f/0xe0
[ 206.499589] [<ffffffff81070f8e>] bad_area_nosemaphore+0xe/0x10
[ 206.571075] [<ffffffff817b5f3e>] do_page_fault+0x29e/0x4d0
[ 206.639632] [<ffffffff8115abb7>] ? kfree+0x37/0x120
[ 206.703332] [<ffffffff813d7bc5>] ? kobject_release+0x55/0x90
[ 206.770813] [<ffffffff814ff9c6>] ?
scsi_device_dev_release_usercontext+0x186/0x1a0
[ 206.849512] [<ffffffff813d7a75>] ? kobject_put+0x35/0x70
[ 206.915042] [<ffffffff814c2552>] ? put_device+0x12/0x20
[ 206.979323] [<ffffffff814ff9d3>] ?
scsi_device_dev_release_usercontext+0x193/0x1a0
[ 207.057596] [<ffffffff817b2d65>] page_fault+0x25/0x30
[ 207.119899] [<ffffffff813d7bc5>] ? kobject_release+0x55/0x90
[ 207.185406] [<ffffffff814f1b37>] ? scsi_device_put+0x17/0x60
[ 207.250384] [<ffffffffa005336c>] megasas_aen_polling+0x28c/0x610
[megaraid_sas]
[ 207.325800] [<ffffffff81420b20>] ? bit_clear_margins+0x1b0/0x1b0
[ 207.393399] [<ffffffff8141b1c0>] ? fb_flashcursor+0x70/0x130
[ 207.459086] [<ffffffff810a030d>] process_one_work+0x10d/0x3a0
[ 207.525397] [<ffffffffa00530e0>] ? megasas_get_pd_list+0x400/0x400
[megaraid_sas]
[ 207.602349] [<ffffffff810a178a>] worker_thread+0xea/0x280
[ 207.666389] [<ffffffff810a16a0>] ? manage_workers+0x190/0x190
[ 207.732026] [<ffffffff810a5879>] kthread+0x99/0xb0
[ 207.791813] [<ffffffff817bb2e4>] kernel_thread_helper+0x4/0x10
[ 207.858499] [<ffffffff810a57e0>] ? flush_kthread_worker+0xb0/0xb0
[ 207.926139] [<ffffffff817bb2e0>] ? gs_change+0x13/0x13
[ 207.987161] Code: 55 65 48 8b 04 25 c0 c6 00 00 48 8b 80 48 03 00 00
48 89 e5 8b 40 f0 c9 c3 66 66 66 90 66 66 90 48 8b 87 48 03 00 00 55 48
89 e5 <48> 8b 40 f8 c9 c3 66 66 66 90 66 66 66 90 66 66 66 90 66 66 90
[ 208.197951] RIP [<ffffffff810a51ab>] kthread_data+0xb/0x20
[ 208.262038] RSP <ffff88060052d928>
[ 208.313041] CR2: fffffffffffffff8
[ 208.362669] ---[ end trace cad1ef4253f2e577 ]---
[ 208.420739] Fixing recursive fault but reboot is needed!
RAID is created but server hangs and needs hard reboot. I'm using
Intel(R) RAID Controller SRCSAS144E but problem occurs only on several
machines.
Resignation from removing device from the scsi bus when host is scanned
helped. Below is mentioned workaround:
Index: megaraid_sas_base.c
===================================================================
--- megaraid_sas_base.c (wersja 29950)
+++ megaraid_sas_base.c (kopia robocza)
@@ -6800,7 +6800,6 @@
}
} else {
if (sdev1) {
- scsi_remove_device(sdev1);
scsi_device_put(sdev1);
}
}
@@ -6820,7 +6819,6 @@
}
} else {
if (sdev1) {
- scsi_remove_device(sdev1);
scsi_device_put(sdev1);
}
}
--
Best regards
Arkadiusz Bubała
Open-E Poland Sp. z o.o.
www.open-e.com
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