Hi,
I have recently installed CentOS4 (i386 version) on server.
After I run
mdadm --create /dev/md0 --level=raid5 --raid-devices=6
--spare-devices=1 $DEVLIST
($DEVLIST is /dev/sda1 ... 7 same SATA disks on three different
sata controllers, two on-board, one pci-card)
it starts to build raid but at the end (> 3 hours) it produces kernel bug.
Could it be hardware error, or it is really kernel bug and I should
try newer kernel (I prefer using stock centos kernel !) ?
Relevant part of log:
Mar 14 20:55:48 server kernel: md: syncing RAID array md0
Mar 14 20:55:48 server kernel: md: minimum _guaranteed_ reconstruction
speed: 1000 KB/sec/disc.
Mar 14 20:55:48 server kernel: md: using maximum available idle IO
bandwith (but not more than 200000 KB/sec) for reconstruction.
Mar 14 20:55:48 server kernel: md: using 128k window, over a total of
390711296 blocks.
Mar 14 20:55:48 server kernel: md: md0: sync done.
(it repeats all the time of reconstruction)
Mar 14 20:55:48 server kernel: eip: c011cf67
Mar 14 20:55:48 server kernel: ------------[ cut here ]------------
Mar 14 20:55:48 server kernel: kernel BUG at include/asm/spinlock.h:146!
Mar 14 20:55:48 server kernel: invalid operand: 0000 [#1]
Mar 14 20:55:48 server kernel: SMP
Mar 14 20:55:48 server kernel: Modules linked in: vfat fat raid5 xor
parport_pc lp parport autofs4 i2c_dev i2c_core sunrpc dm_mod button
battery ac uhci_hcd ehci_hcd sata_sil e1000 floppy ext3 jbd ata_piix
aacraid sata_promise libata sd_mod scsi_mod
Mar 14 20:55:48 server kernel: CPU: 1
Mar 14 20:55:48 server kernel: EIP: 0060:[<c02c4d04>] Not tainted VLI
Mar 14 20:55:48 server kernel: EFLAGS: 00010046 (2.6.9-5.0.3.ELsmp)
Mar 14 20:55:48 server kernel: EIP is at _spin_lock_irqsave+0x20/0x45
Mar 14 20:55:48 server kernel: eax: c011cf67 ebx: 00000246 ecx:
c02d7fe4 edx: c02d7fe4
Mar 14 20:55:48 server kernel: esi: f44f4f54 edi: f4ae4000 ebp:
f4ae4f9c esp: f4ae4f84
Mar 14 20:55:48 server kernel: ds: 007b es: 007b ss: 0068
Mar 14 20:55:48 server kernel: Process md0_resync (pid: 12079,
threadinfo=f4ae4000 task=f620f0b0)
Mar 14 20:55:48 server kernel: Stack: f44f4f50 f44f4f54 c011cf67
f4dc1280 00000000 f4ae4000 00000000 c02650fd
Mar 14 20:55:48 server kernel: 00000000 f620f0b0 c011e8d2
f4ae4fd0 f4ae4fd0 f44f4ee4 c02c5fca f396a630
Mar 14 20:55:48 server kernel: 00000000 f620f0b0 c011e8d2
f4ae4fd0 f4ae4fd0 00000000 00000000 0000007b
Mar 14 20:55:48 server kernel: Call Trace:
Mar 14 20:55:48 server kernel: [<c011cf67>] complete+0x12/0x3d
Mar 14 20:55:48 server kernel: [<c02650fd>] md_thread+0x15f/0x168
Mar 14 20:55:48 server kernel: [<c011e8d2>] autoremove_wake_function+0x0/0x2d
Mar 14 20:55:48 server kernel: [<c02c5fca>] ret_from_fork+0x6/0x14
Mar 14 20:55:48 server kernel: [<c011e8d2>] autoremove_wake_function+0x0/0x2d
Mar 14 20:55:48 server kernel: [<c0264f9e>] md_thread+0x0/0x168
Mar 14 20:55:48 server kernel: [<c01041f1>] kernel_thread_helper+0x5/0xb
Mar 14 20:55:48 server kernel: Code: 81 00 00 00 00 01 c3 f0 ff 00 c3
56 89 c6 53 9c 5b fa 81 78 04 ad 4e ad de 74 18 ff 74 24 08 68 e4 7f
2d c0 e8 4c be e5 ff 59 58 <0f> 0b 92 00 f1 70 2d c0 f0 fe 0e 79 13 f7
c3 00 02 00 00 74 01
System is up-to-date (via yum) CentOS4:
[root@server tmp]# free
total used free shared buffers cached
Mem: 1034676 286364 748312 0 30464 182996
-/+ buffers/cache: 72904 961772
Swap: 2096440 0 2096440
[root@server tmp]# uname -r
2.6.9-5.0.3.ELsmp
[root@server tmp]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping : 9
cpu MHz : 2394.536
cache size : 512 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
xtpr
bogomips : 4718.59
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping : 9
cpu MHz : 2394.536
cache size : 512 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
xtpr
bogomips : 4784.12
--
Sincerely
Ivo Panacek
