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SubjectRe: initrd oops; still happens with 2.4.5ac2
On Mon, May 28, 2001 at 10:25:51AM +0300, [Ville Herva] claimed:
> On Mon, May 28, 2001 at 12:12:20AM +0300, [Ville Herva] claimed:
> > On Sun, May 27, 2001 at 07:26:50PM +0300, [Ville Herva] claimed:
> > >
> > > I have a reproducible oops on 2.4.4ac17 at initrd unmount (see
> > > http://marc.theaimsgroup.com/?l=linux-kernel&m=99079948404775&w=2 for
> > > details) that seems to be related:
> >
> > Ok, some more info:
> >
> > 2.4.2-2 (redhat) BOOTS OK
> > 2.4.4ac17 OOPS
> > 2.4.4ac17+av OOPS
> > 2.4.5 OOPS
> > 2.4.5ac1+av OOPS
> > 2.4.4 BOOTS OK
> > 2.4.4ac9 BOOTS OK
> > 2.4.4ac10 BOOTS OK
> > 2.4.4ac11 BOOTS OK
> > 2.4.4ac12 fails to mount root ("Checking root filesystem.
> > /dev/sdb is mounted.")
> > 2.4.4ac14 fails to mount root
> > 2.4.4ac15 OOPS
>
> 2.4.5ac2 OOPS

Here is the ksymoops output for the 2.4.5ac2 initrd umount OOPS:

----------------------------------------------------------------------------
ksymoops 2.4.1 on i686 2.4.4-ac11. Options used
-v vmlinux (specified)
-K (specified)
-l /proc/modules (default)
-O (specified)
-m ./System.map (specified)

No ksyms, skipping lsmod
Trying to unmount old root ... <1>Unable to handle kernel NULL pointer
dereference at virtual address 0000001e
c0199a96
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c0199a96>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 0000000e ebx: 00001261 ecx: 00000000 edx: cfff5d64
esi: 00000000 edi: c15dc4a0 ebp: c15d5160 esp: cfff5d44
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 1, stackpage=cfff5000)
Stack: cfff4000 ffffffff c15dc4a0 c0136427 cfff5d64 00000000 00001261
00000000
c15edc00 00000000 00000046 c1462000 c01be02a c1462000 00000046
00000246
c0267b20 c1467f60 c15edc00 c01ae171 c15edc00 00000246 00000100
c15edc00
Call Trace: [<c0136427>] [<c01be02a>] [<c01ae171>] [<c01b488c>] [<c0112600>]
[<c011b230>] [<c011b543>] [<c011b0e6>] [<c011b2f4>] [<c011867c>]
[<c0118586>] [<c011848b>] [<c0133106>] [<c0122d15>] [<c014170b>]
[<c0142bb1>] [<c0136621>] [<c01347ec>] [<c0105000>] [<c01177d6>]
[<c0105000>] [<c01051da>] [<c010520e>] [<c0105000>] [<c01056a6>]
[<c0105200>]
Code: 8b 40 10 83 f8 02 7e 62 b8 f0 ff ff ff eb 74 85 c9 b8 ea ff

>>EIP; c0199a96 <rd_ioctl+76/100> <=====
Trace; c0136427 <ioctl_by_bdev+77/90>
Trace; c01be02a <sym53c8xx_queue_command+4a/80>
Trace; c01ae171 <scsi_dispatch_cmd+111/160>
Trace; c01b488c <scsi_request_fn+2cc/310>
Trace; c0112600 <schedule+220/350>
Trace; c011b230 <update_process_times+20/80>
Trace; c011b543 <do_timer+23/a0>
Trace; c011b0e6 <update_wall_time+16/50>
Trace; c011b2f4 <timer_bh+24/250>
Trace; c011867c <bh_action+1c/60>
Trace; c0118586 <tasklet_hi_action+36/60>
Trace; c011848b <do_softirq+5b/80>
Trace; c0133106 <try_to_free_buffers+f6/140>
Trace; c0122d15 <truncate_list_pages+145/170>
Trace; c014170b <destroy_inode+1b/20>
Trace; c0142bb1 <iput+121/130>
Trace; c0136621 <blkdev_put+71/a0>
Trace; c01347ec <kill_super+ec/100>
Trace; c0105000 <do_linuxrc+0/e0>
Trace; c01177d6 <sys_waitpid+16/20>
Trace; c0105000 <do_linuxrc+0/e0>
Trace; c01051da <prepare_namespace+fa/120>
Trace; c010520e <init+e/140>
Trace; c0105000 <do_linuxrc+0/e0>
Trace; c01056a6 <kernel_thread+26/30>
Trace; c0105200 <init+0/140>
Code; c0199a96 <rd_ioctl+76/100>
00000000 <_EIP>:
Code; c0199a96 <rd_ioctl+76/100> <=====
0: 8b 40 10 mov 0x10(%eax),%eax <=====
Code; c0199a99 <rd_ioctl+79/100>
3: 83 f8 02 cmp $0x2,%eax
Code; c0199a9c <rd_ioctl+7c/100>
6: 7e 62 jle 6a <_EIP+0x6a> c0199b00
<rd_ioctl+e0/100>
Code; c0199a9e <rd_ioctl+7e/100>
8: b8 f0 ff ff ff mov $0xfffffff0,%eax
Code; c0199aa3 <rd_ioctl+83/100>
d: eb 74 jmp 83 <_EIP+0x83> c0199b19
<rd_ioctl+f9/100>
Code; c0199aa5 <rd_ioctl+85/100>
f: 85 c9 test %ecx,%ecx
Code; c0199aa7 <rd_ioctl+87/100>
11: b8 ea ff 00 00 mov $0xffea,%eax

<0>Kernel panic: Attempted to kill init!
----------------------------------------------------------------------------

And here is another ksymoopsed OOPS with the same kernel, but booting from
/dev/sdc (on megaraid) with grub:

----------------------------------------------------------------------------
ksymoops 2.4.1 on i686 2.4.4-ac11. Options used
-v vmlinux (specified)
-K (specified)
-l /proc/modules (default)
-O (specified)
-m ./System.map (specified)

No ksyms, skipping lsmod
Unable to handle kernel NULL pointer dereference at virtual address 0000001f
c014259a
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c014259a>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 00000000 ebx: ffffffff ecx: 0000ffff edx: 00000000
esi: ffffffff edi: 00000001 ebp: f7fbec80 esp: c026ff10
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c026f000)
Stack: c025b3c0 f7fbec80 00000001 c1eef000 c0142995 c1eef000 00000001
f7fbec80
00000000 00000000 00000005 c1eef000 c012a492 00000007 c025b3c0
00000001
00000000 c025b300 c0145c60 c1eef000 00000001 00000000 00000000
c1eef000
Call Trace: [<c0142995>] [<c012a492>] [<c0145c60>] [<c0145d4c>] [<c01343e2>]
[<c01348ff>] [<c0105000>] [<c0100197>]
Code: 39 7e 20 75 f1 8b 44 24 14 39 86 90 00 00 00 75 e5 8b 54 24

>>EIP; c014259a <find_inode+1a/50> <=====
Trace; c0142995 <iget4+45/d0>
Trace; c012a492 <__alloc_pages+62/230>
Trace; c0145c60 <proc_get_inode+40/100>
Trace; c0145d4c <proc_read_super+2c/b0>
Trace; c01343e2 <read_super+62/b0>
Trace; c01348ff <kern_mount+4f/b0>
Trace; c0105000 <do_linuxrc+0/e0>
Trace; c0100197 <L6+0/2>
Code; c014259a <find_inode+1a/50>
00000000 <_EIP>:
Code; c014259a <find_inode+1a/50> <=====
0: 39 7e 20 cmp %edi,0x20(%esi) <=====
Code; c014259d <find_inode+1d/50>
3: 75 f1 jne fffffff6 <_EIP+0xfffffff6> c0142590
<find_inode+10/50>
Code; c014259f <find_inode+1f/50>
5: 8b 44 24 14 mov 0x14(%esp,1),%eax
Code; c01425a3 <find_inode+23/50>
9: 39 86 90 00 00 00 cmp %eax,0x90(%esi)
Code; c01425a9 <find_inode+29/50>
f: 75 e5 jne fffffff6 <_EIP+0xfffffff6> c0142590
<find_inode+10/50>
Code; c01425ab <find_inode+2b/50>
11: 8b 54 24 00 mov 0x0(%esp,1),%edx

<0>Kernel panic: Attempted to kill the idle task!
----------------------------------------------------------------------------

The bootlog for initrd umount case is at
http://v.iki.fi/~vherva/tmp/bootlog.initrd
the corresponding ksymoops:
http://v.iki.fi/~vherva/tmp/ksymoops-initrd

and the same for the grub:
http://v.iki.fi/~vherva/tmp/bootlog.grub
http://v.iki.fi/~vherva/tmp/ksymoops-grub

and the .config for both:

http://v.iki.fi/~vherva/tmp/.config


Note that 2.4.4 and 2.4.2-2 boot ok in both cases.


-- v --

v@iki.fi
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