Bug#261893: kernel-image-2.6.6-1-generic: Kernel bug at mm/slab.c:1530
Package: kernel-image-2.6.6-1-generic
Severity: normal
This applies to a rev1 miata (the one with the CIA hardware bug).
With a stock 2.6.6-1-generic kernel it crashes as soon as it initilizes
the SCSI controller. This is documented and can be fixed by undoing the
debian patch to core_cia.c. But with this rebuilt kernel, I get this,
just after scsi has been initilized and before root is mounted:
Jul 28 21:01:20 alpha kernel: Kernel bug at mm/slab.c:1530
Jul 28 21:01:20 alpha kernel: modprobe(188): Kernel Bug 1
Jul 28 21:01:20 alpha kernel: pc = [kmem_cache_destroy+64/496] ra =
[<fffffffc00256c94>] ps = 0000 Not tainted
Jul 28 21:01:20 alpha kernel: v0 = 0000000000000000 t0 =
0000000000000000 t1 = fffffc0017ffaf20
Jul 28 21:01:20 alpha kernel: t2 = fffffc000056af80 t3 =
fffffc0000e167b0 t4 = fffffc00005f0818
Jul 28 21:01:20 alpha kernel: t5 = fffffffffffffff8 t6 =
0000000000000004 t7 = fffffc0000adc000
Jul 28 21:01:20 alpha kernel: a0 = 0000000000000000 a1 =
fffffffc0026163e a2 = 000000000000003c
Jul 28 21:01:20 alpha kernel: a3 = 0000000000000000 a4 =
fffffc0000adfe28 a5 = fffffc0000e166a8
Jul 28 21:01:20 alpha kernel: t8 = 0000000000000000 t9 =
fffffc000035475c t10= 0000000000000038
Jul 28 21:01:20 alpha kernel: t11= 0000000000000040 pv =
fffffc0000354c14 at = 0000000000000000
Jul 28 21:01:20 alpha kernel: gp = fffffc00005e1300 sp =
fffffc0000adfe88
Jul 28 21:01:20 alpha kernel: Trace:fffffc0000349ae0 fffffc0000314b84
Jul 28 21:01:20 alpha kernel: Code: a0480068 243f1000 2021ff00
44410002 e4400004 00000081 <000005fa> 004caed1
Jul 28 21:01:20 alpha kernel: VFS: Can't find ext2 filesystem on dev
sda1.
Jul 28 21:01:20 alpha kernel: XFS mounting filesystem sda1
Yes, "/" is XFS, as are all other filesystems (I have an aboot that
supports XFS). Don't think it's that though.
The system continues to boot, but fearing FS damage, I didn't do much
with it.
"loadmodules" on the inird contains:
modprobe -k xfs
modprobe -k sd_mod
modprobe -k unix 2> /dev/null
modprobe -k sym53c8xx
kernel-2.4.26, with the core_cia patch undone works fine. This is the
"vorlon-fixed alpha kernel" mentioned on the debian linux-alpha list.
The scsi card is a sym53c895 Ultra80/LVD card. 2.6.x uses the
sym53c8xx_2 module, 2.4.x defaults to sym53c8xx. But at least with 2.4.26
I can use the sym53c8xx_2 without any problem as well.
system runs an uptodate "testing" release.
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (500, 'testing')
Architecture: alpha
Kernel: Linux 2.4.26-1-generic
Locale: LANG=C, LC_CTYPE=C
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