Hi,
I tried to use the iSCSI initiator with iscsitarget on 2.6.21-rc6 today,
with rather mixed results.
I could log in okay, and a device would appear. Trying to mount
that device would hang though:
kernel: iscsi: ctask enq [read cid 0 sc df57e500 cdb 0x28 itt 0x1c len 4096 cmdsn 29 win 33]
kernel: iscsi: cmdrsp [op 0x25 cid 0 itt 0x1c len 0]
...
kernel: iscsi: ctask enq [read cid 0 sc df57e500 cdb 0x28 itt 0x2b len 4096 cmdsn 44 win 33]
kernel: iscsi: cmdrsp [op 0x25 cid 0 itt 0x2b len 0]
kernel: kjournald starting. Commit interval 5 seconds
kernel: iscsi: ctask enq [write cid 0 sc df57e500 cdb 0x2a itt 0x2c len 4096 cmdsn 45 win 33]
Nothing in the logs. tcpdump shows lots of data being transmitted, and tracing
iscsitarget shows a storm of data_out commands being received.
60 seconds later:
kernel: iscsi: aborting [sc df57e500 itt 0x2c]
and again, nothing - mount still hangs. I shut down both iscsitarget and
the initiator. Surprisingly, the mount command now finishes, and /proc/mounts
shows that the device was mounted successfully. Gingerly, I unmount the device:
scsi 3:0:0:0: rejecting I/O to dead device
Buffer I/O error on device sdc, logical block 0
lost page write due to I/O error on sdc
BUG: unable to handle kernel paging request at virtual address e101e200
printing eip:
e085509f
*pde = 13840067
Oops: 0000 [#1]
SMP
Modules linked in: crc32c libcrc32c cpufreq_ondemand cpufreq_userspace cpufreq_pow
ersave p4_clockmod speedstep_lib freq_table ipv6 af_packet edd button snd_seq snd_seq_device battery ac nls_iso88
59_1 nls_cp437 vfat fat nls_base loop dm_mod i2c_i801 snd_intel8x0 snd_ac97_codec ac97_bus e100 snd_pcm snd_timer
snd mii i2c_core soundcore intel_rng ehci_hcd intel_agp snd_page_alloc rng_core uhci_hcd agpgart usbcore ide_cd
cdrom ext3 jbd fan thermal sg processor ata_piix libata piix sd_mod scsi_mod ide_disk ide_core
CPU: 1
EIP: 0060:[<e085509f>] Not tainted VLI
EFLAGS: 00010286 (2.6.21-rc6-smp #4)
EIP is at scsi_device_put+0x9/0x2e [scsi_mod]
eax: e101e200 ebx: c44a94c8 ecx: dff2f680 edx: 00000001
esi: df33c000 edi: c44a93c0 ebp: dec0504c esp: dfa3bee8
ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
Process umount (pid: 7068, ti=dfa3a000 task=d13f91c0 task.ti=dfa3a000)
Stack: c44a94c8 df33c000 e0817360 c44a94c0 df33c000 e0817c9c dec0504c c0156d2e
00000000 dec05040 c018afe3 c0151186 dec050b0 c31dfe00 e0e2d0a0 00000000
00000000 c016da2d dfa298c0 c31dfe00 c017e8bb 00000001 cdfcf2a0 dfa298c0
Call Trace:
[<e0817360>] scsi_disk_put+0x22/0x2e [sd_mod]
[<e0817c9c>] sd_release+0x69/0x70 [sd_mod]
[<c0156d2e>] truncate_inode_pages+0x17/0x1a
[<c018afe3>] __blkdev_put+0x5b/0x103
[<c0151186>] filemap_write_and_wait+0x1f/0x29
[<c016da2d>] deactivate_super+0x51/0x64
[<c017e8bb>] sys_umount+0x1f1/0x219
[<c016eda2>] sys_stat64+0xf/0x23
[<c02b4e91>] do_page_fault+0x28c/0x4ed
[<c015e3be>] do_munmap+0x193/0x1ac
[<c017e8fa>] sys_oldumount+0x17/0x1a
[<c0104de4>] syscall_call+0x7/0xb
[<c02b0000>] unix_stream_connect+0x3f/0x363
=======================
Code: 40 75 05 39 6a 44 74 13 8d 51 f8 8b 4a 08 0f 18 01 90 8d 42 08 39 d8 75 e0 3
1 d2 5b 89 d0 5e 5f 5d c3 56 89 c6 53 8b 00 8b 40 5c <8b> 18 85 db 74 12 89 d8 e8 f7 73 8e df 85 c0 74 07 89 d8 e
8 67
EIP: [<e085509f>] scsi_device_put+0x9/0x2e [scsi_mod] SS:ESP 0068:dfa3bee8
Olaf
--
Olaf Kirch | --- o --- Nous sommes du soleil we love when we play
okir@xxxxxx | / | \ sol.dhoop.naytheet.ah kin.ir.samse.qurax
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
