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Subject2.4.18: Oops restoring tape to ext3 filesystem
Hiya all,

I got an oops while restoring a tape to an ext3 filesystem.
After I rebooted (scsi tape wouldn't answer any more), and mounted
said filesystem ext2, everything seems to be in working order.

Oops:

ksymoops 0.7c on i686 2.4.18. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18/ (default)
-m /usr/src/linux/System.map (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Warning (compare_maps): ksyms_base symbol netlink_attach_R__ver_netlink_attach not found in System.map. Ignoring ksyms_base entry
Warning (compare_maps): ksyms_base symbol netlink_detach_R__ver_netlink_detach not found in System.map. Ignoring ksyms_base entry
Warning (compare_maps): ksyms_base symbol netlink_post_R__ver_netlink_post not found in System.map. Ignoring ksyms_base entry
Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c0272a00, System.map says c014fe10. Ignoring ksyms_base entry
Mar 24 22:26:19 devel kernel: Unable to handle kernel paging request at virtual address 77b8e2c4
Mar 24 22:26:19 devel kernel: c0219f97
Mar 24 22:26:19 devel kernel: *pde = 00000000
Mar 24 22:26:19 devel kernel: Oops: 0000
Mar 24 22:26:19 devel kernel: CPU: 0
Mar 24 22:26:19 devel kernel: EIP: 0010:[scsi_allocate_device+151/576] Not tainted
Mar 24 22:26:19 devel kernel: EIP: 0010:[<c0219f97>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Mar 24 22:26:19 devel kernel: EFLAGS: 00010086
Mar 24 22:26:19 devel kernel: eax: f7bbc9cc ebx: f7b8e200 ecx: f7bd38c4 edx: 00000000
Mar 24 22:26:19 devel kernel: esi: f7bd38c4 edi: 00000082 ebp: dad66000 esp: dad67dfc
Mar 24 22:26:19 devel kernel: ds: 0018 es: 0018 ss: 0018
Mar 24 22:26:19 devel kernel: Process restore (pid: 23059, stackpage=dad67000)
Mar 24 22:26:19 devel kernel: Stack: f7bbc9cc f73dd60c f776f2e4 f7619c00 c015c82a f7769ae4 f776f2e4 00000003
Mar 24 22:26:19 devel kernel: c6966080 f7770ef4 f7770f48 f7770ef4 f7770f48 c0221950 f7bd38c4 00000000
Mar 24 22:26:19 devel kernel: 00000000 00000000 f7bbc9cc f7bd38c4 f7770ef4 dad67ec4 c2dbaa0c c0155ee0
Mar 24 22:26:19 devel kernel: Call Trace: [journal_dirty_metadata+458/496] [scsi_request_fn+320/768] [ext3_reserve_inode_write+48/176] [__scsi_insert_special+100/112] [scsi_insert_special_req+25/32]
Mar 24 22:26:19 devel kernel: Call Trace: [<c015c82a>] [<c0221950>] [<c0155ee0>] [<c0220f24>] [<c0220f79>]
Mar 24 22:26:19 devel kernel: [<c021a755>] [<c022f89b>] [<c022f6e0>] [<c0231184>] [<c0126d80>] [<c02317b0>]
Mar 24 22:26:19 devel kernel: [<c0132045>] [<c0106d0b>]
Mar 24 22:26:19 devel kernel: Code: 8b 83 c4 00 00 00 40 75 f0 85 db 0f 85 b8 00 00 00 8b 4c 24

>>EIP; c0219f97 <scsi_allocate_device+97/240> <=====
Trace; c015c82a <journal_dirty_metadata+1ca/1f0>
Trace; c0221950 <scsi_request_fn+140/300>
Trace; c0155ee0 <ext3_reserve_inode_write+30/b0>
Trace; c0220f24 <__scsi_insert_special+64/70>
Trace; c0220f79 <scsi_insert_special_req+19/20>
Trace; c021a755 <scsi_do_req+145/170>
Trace; c022f89b <st_do_scsi+fb/140>
Trace; c022f6e0 <st_sleep_done+0/c0>
Trace; c0231184 <read_tape+104/380>
Trace; c0126d80 <generic_file_write+500/770>
Trace; c02317b0 <st_read+3b0/4d0>
Trace; c0132045 <sys_read+95/100>
Trace; c0106d0b <system_call+33/38>
Code; c0219f97 <scsi_allocate_device+97/240>
00000000 <_EIP>:
Code; c0219f97 <scsi_allocate_device+97/240> <=====
0: 8b 83 c4 00 00 00 mov 0xc4(%ebx),%eax <=====
Code; c0219f9d <scsi_allocate_device+9d/240>
6: 40 inc %eax
Code; c0219f9e <scsi_allocate_device+9e/240>
7: 75 f0 jne fffffff9 <_EIP+0xfffffff9> c0219f90 <scsi_allocate_device+90/240>
Code; c0219fa0 <scsi_allocate_device+a0/240>
9: 85 db test %ebx,%ebx
Code; c0219fa2 <scsi_allocate_device+a2/240>
b: 0f 85 b8 00 00 00 jne c9 <_EIP+0xc9> c021a060 <scsi_allocate_device+160/240>
Code; c0219fa8 <scsi_allocate_device+a8/240>
11: 8b 4c 24 00 mov 0x0(%esp,1),%ecx


5 warnings issued. Results may not be reliable.

System:

processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 4
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 700.050
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips : 1395.91

Memory:

total: used: free: shared: buffers: cached:
Mem: 1317916672 1039151104 278765568 0 12955648 962150400
Swap: 537894912 0 537894912
MemTotal: 1287028 kB
MemFree: 272232 kB
MemShared: 0 kB
Buffers: 12652 kB
Cached: 939600 kB
SwapCached: 0 kB
Active: 39056 kB
Inactive: 929412 kB
HighTotal: 393152 kB
HighFree: 2044 kB
LowTotal: 893876 kB
LowFree: 270188 kB
SwapTotal: 525288 kB
SwapFree: 525288 kB

Scsi info:

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DNES-309170W Rev: SA30
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: QUANTUM Model: XP34550W Rev: LYK8
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: QUANTUM Model: XP34550W Rev: LYK8
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: QUANTUM Model: XP34550W Rev: LYK8
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 06 Lun: 00
Vendor: ARCHIVE Model: 4326XX 27871-XXX Rev: 4.BG
Type: Sequential-Access ANSI SCSI revision: 02

SCSI controller is a Symbios Logic 53c876 dual channel card.

Hope this helps,

Bas Vermeulen

--
"God, root, what is difference?"
-- Pitr, User Friendly

"God is more forgiving."
-- Dave Aronson

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