softraid5 bug on ALL 2.4 kernels

From: Max Shaposhnikov (shapa@spylog.ru)
Date: Fri Dec 15 2000 - 15:48:24 EST


2.4test10 - mke2fs work fine, but dd if=/dev/zero of=/mnt/testfile
count=2000000 gor kernel error
2.4test11 - mke2fs result kernel error immideatly.
2.4test12 - mke2fs result kernel error immideatly.

kernels- SMP&UP with apic (SCSI drivers don't work good without enabled APIC
on SMP motherboard in UP kernel)

Mother Intel GX
2xPIII-850
1Gb and 2Gb
Adaptec 7860 SCSI (but on IDE soft RAID got the same error)

raid1 work fine.

dmesg:

 disk 25, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
 disk 26, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
md: updating md0 RAID superblock on device
hdd [events: 00000001](write) hdd's sb offset: 45034816
md: syncing RAID array md0
md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc.
md: using maximum available idle IO bandwith (but not more than 100000
KB/sec) for reconstruction.
md: using 124k window, over a total of 45034816 blocks.
hdc [events: 00000001](write) hdc's sb offset: 45034816
hda [events: 00000001](write) hda's sb offset: 45034816
.
kernel BUG at buffer.c:765!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c012d852>]
EFLAGS: 00010286
eax: 0000001c ebx: f7f89d08 ecx: c027c508 edx: 00000001
esi: f6f04160 edi: f6f04000 ebp: f7f89cc0 esp: f7001e8c
ds: 0018 es: 0018 ss: 0018
Process raid5d (pid: 284, stackpage=f7001000)
Stack: c022ad45 c022affa 000002fd 00000004 c01d9788 f7f89cc0 00000001
00000004
       f6f04000 00000001 00000000 c01da299 f6f04000 00000001 00000001
f6f04000
       f7003000 f6f04000 00000003 00000003 f7003000 c01dadf2 f6f04000
f6f04000
Call Trace: [<c022ad45>] [<c022affa>] [<c01d9788>] [<c01da299>] [<c01dadf2>]
[<c010a92e>] [<c010a94c>]
       [<c01149b6>] [<c01db326>] [<c01e2046>] [<c0107c34>]
Code: 0f 0b 83 c4 0c 5b c3 8d 76 00 55 57 56 53 8b 74 24 14 8b 54

Max Shaposhnikov,
SpyLog UNIX administrator (www.spylog.ru)

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This archive was generated by hypermail 2b29 : Sat Dec 23 2000 - 21:00:15 EST