RE: [Iscsitarget-devel] iSCSI Target crash

[Zilvinas K. <ZKr...@al...>]

I using iSCSI target with two Microsoft Windows 2003 clusters. iSCSI
target exports 8 disks, 4 disks for each cluster. iSCSI target crashes
when trying to replace quorum disk in cluster.=20

One more dump:


sess_param(173) 1 0 1 8192 8192 262144 65536 2 20 8 1 1 0 1 1
sess_param(173) 1 0 1 8192 8192 262144 65536 2 20 8 1 1 0 1 1
execute_task_management(1177) 5b 5 ffffffff
execute_task_management(1177) 7a 5 ffffffff
execute_task_management(1177) a4 5 ffffffff
execute_task_management(1177) ce 5 ffffffff
execute_task_management(1177) f8 5 ffffffff
execute_task_management(1177) 122 5 ffffffff
execute_task_management(1177) 14c 5 ffffffff
execute_task_management(1177) 1ad 5 ffffffff
sess_param(173) 1 0 1 8192 8192 262144 65536 2 20 8 1 1 0 1 1
execute_task_management(1177) 4d 5 ffffffff
execute_task_management(1177) 6c 5 ffffffff
execute_task_management(1177) 94 5 ffffffff
execute_task_management(1177) bf 5 ffffffff
execute_task_management(1177) 3d9 5 ffffffff
execute_task_management(1177) 408 5 ffffffff
execute_task_management(1177) 41f 5 ffffffff
execute_task_management(1177) 462 5 ffffffff
execute_task_management(1177) 4bb 5 ffffffff
execute_task_management(1177) 580 5 ffffffff
execute_task_management(1177) 5a9 5 ffffffff
execute_task_management(1177) 5bc 5 ffffffff
execute_task_management(1177) 5d3 5 ffffffff
Unable to handle kernel paging request at virtual address 35bf5a83
 printing eip:
f8b3878d
*pde =3D 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: iscsi_trgt crc32c libcrc32c ipv6 floppy pcspkr
i2c_i801 i2c_core generic shpchp pci_hotplug ehci_hcd uhci_hcd usbcore
piix e1000 tsdev mousedev dm_mod 8021q psmouse ide_generic ide_disk
ide_cd cdrom ide_core genrtc isofs ext3 jbd unix hptmv6 sd_mod scsi_mod
CPU:    0
EIP:    0060:[<f8b3878d>]    Tainted: P      VLI
EFLAGS: 00010297   (2.6.15.4)
EIP is at check_segment_length+0xc/0x5b [iscsi_trgt]
eax: 00000000   ebx: f43008f8   ecx: 00000000   edx: 00000007
esi: 35bf5a7b   edi: f43008f8   ebp: 00000000   esp: f4bbff5c
ds: 007b   es: 007b   ss: 0068
Process istd1 (pid: 4148, threadinfo=3Df4bbe000 task=3Df4be9a70)
Stack: df935000 35bf5a7b f8b387ec f43008f8 df935000 f43008f8 00000001
f8b38e8c
       f43008f8 00000000 df935000 f4656000 00000000 f40a6000 f8b396ef
df935000
       f40a615c f4656000 f40a6178 f40a6000 f8b3998b df935000 f4bbe000
f4517d64
Call Trace:
 [<f8b387ec>] cmnd_rx_start+0x10/0xa8 [iscsi_trgt]
 [<f8b38e8c>] recv+0x189/0x330 [iscsi_trgt]
 [<f8b396ef>] process_io+0x16/0x67 [iscsi_trgt]
 [<f8b3998b>] istd+0x8f/0xc5 [iscsi_trgt]
 [<f8b398fc>] istd+0x0/0xc5 [iscsi_trgt]
 [<c0129747>] kthread+0x7c/0xa6
 [<c01296cb>] kthread+0x0/0xa6
 [<c0100f25>] kernel_thread_helper+0x5/0xb
Code: 02 5e c7 e8 39 b0 5c c7 0f 0b 83 c4 10 8b 46 04 89 33 89 5e 04 89
18 89 43 04 5b 5e 5f 5d c3 56 53 8b 5c 24 0c 8b 73 18 8b 4b 58 <8b> 46
08 83 c0 20 8b 50 0c 39 d1 76 3d 8b 43 30 52 0f c8 51 50=20



-----Original Message-----
From: Ming Zhang [mailto:mi...@el...]=20
Sent: Tuesday, February 28, 2006 12:33 AM
To: Zilvinas Krapavickas
Cc: isc...@li...
Subject: Re: [Iscsitarget-devel] iSCSI Target crash

yes, iet still has some issues in task management code.

what is your configuration and can you reproduce this?

ming

On Tue, 2006-02-28 at 00:21 +0200, Zilvinas Krapavickas wrote:
> Hello,=20
>=20
>    Today my iSCSI target crashed. Maybe this is known problem and
> someone can tell me what happens ?
>=20
> =20
>=20
> =20
>=20
> execute_task_management(1177) c3 6 ffffffff
>=20
> wthread_queue(20) 87 f4fc52e8 1 25 0 8 2b c1
>=20
> wthread_queue(23) 0
>=20
> BUG at /usr/src/iscsitarget-0.4.13/kernel/wthread.c:24
> assert(list_empty(&cmnd->list))
>=20
>  [<f8b39b2f>] wthread_queue+0x8f/0xcf [iscsi_trgt]
>=20
>  [<f8b386a8>] iscsi_session_push_cmnd+0x62/0x13b [iscsi_trgt]
>=20
>  [<f8b38fdc>] recv+0x2d9/0x330 [iscsi_trgt]
>=20
>  [<f8b396ef>] process_io+0x16/0x67 [iscsi_trgt]
>=20
>  [<f8b3998b>] istd+0x8f/0xc5 [iscsi_trgt]
>=20
>  [<f8b398fc>] istd+0x0/0xc5 [iscsi_trgt]
>=20
>  [<c0129747>] kthread+0x7c/0xa6
>=20
>  [<c01296cb>] kthread+0x0/0xa6
>=20
>  [<c0100f25>] kernel_thread_helper+0x5/0xb
>=20
> ------------[ cut here ]------------
>=20
> kernel BUG at :50307!
>=20
> invalid operand: 0000 [#1]
>=20
> PREEMPT SMP
>=20
> Modules linked in: iscsi_trgt crc32c libcrc32c ipv6 floppy pcspkr
> i2c_i801 i2c_core generic shpchp pci_hotplug ehci_hcd uhci_hcd usbcore
> piix e1000 tsdev mousedev dm_mod 8021q psmouse ide_generic ide_disk
> ide_cd cdrom ide_core genrtc isofs ext3 jbd unix hptmv6 sd_mod
> scsi_mod
>=20
> CPU:    0
>=20
> EIP:    0060:[<f8b39b2f>]    Tainted: P      VLI
>=20
> EFLAGS: 00010292   (2.6.15.4)
>=20
> EIP is at wthread_queue+0x8f/0xcf [iscsi_trgt]
>=20
> eax: f4ee5ffd   ebx: 00000087   ecx: c02bad3c   edx: 00000000
>=20
> esi: f4fc52c8   edi: f70f9398   ebp: dfb37000   esp: f4ee5f44
>=20
> ds: 007b   es: 007b   ss: 0068
>=20
> Process istd1 (pid: 3940, threadinfo=3Df4ee4000 task=3Df7189550)
>=20
> Stack: f8b3f080 f8b3fbc0 00000018 f8b3f068 f4fc52c8 f4fc52c8 00000088
> f8b386a8
>=20
>        f4fc52c8 f4f15000 f4fc52c8 00000001 00000000 f8b38fdc f4fc52c8
> 00000000
>=20
>        f4f15000 f4ee4000 00000000 f70f9200 f8b396ef f4f15000 c198d000
> f4ee4000
>=20
> Call Trace:
>=20
>  [<f8b386a8>] iscsi_session_push_cmnd+0x62/0x13b [iscsi_trgt]
>=20
>  [<f8b38fdc>] recv+0x2d9/0x330 [iscsi_trgt]
>=20
>  [<f8b396ef>] process_io+0x16/0x67 [iscsi_trgt]
>=20
>  [<f8b3998b>] istd+0x8f/0xc5 [iscsi_trgt]
>=20
>  [<f8b398fc>] istd+0x0/0xc5 [iscsi_trgt]
>=20
>  [<c0129747>] kthread+0x7c/0xa6
>=20
>  [<c01296cb>] kthread+0x0/0xa6
>=20
>  [<c0100f25>] kernel_thread_helper+0x5/0xb
>=20
> Code: 5d f0 b3 f8 e8 c4 ee 5d c7 83 c4 10 39 36 74 20 68 68 f0 b3 f8
> 6a 18 68 c0 fb b3 f8 68 80 f0 b3 f8 e8 a7 ee 5d c7 e8 74 9c 5c c7 <0f>
> 0b 83 c4 10 89 f8 e8 d6 5a 73 c7 8d 47 14 8b 50 04 89 06 89
>=20
>=20