Re: [BUG] 2.6.20-rc3-mm1: can not mount root

[Tomasz Kvarsin]

Some details:
system hangs after it print:
VFS: Mounted root (ext3 filesystem) readonly.
And if connect gdb to machine, I see the trace that I include into
previous letter.
My kernel config in attachment.

If you need some more info please tell.

On 1/5/07, Tomasz Kvarsin <kvarsin@xxxxxxxxx> wrote:
> I can not boot machine with 2.6.20-rc3-mm1 and  2.6.20-rc2-mm1.
> I made binary search, patch bellow cause this bug:
> $quilt top
> patches/sched-improve-sched_clock-on-i686.patch
>
> backtrace which I got by connecting "gdb" to machine:
>
> _raw_spin_lock (lock=0xc06c0c60) at lib/spinlock_debug.c:108
> 108                     for (i = 0; i < loops; i++) {
> (gdb) bt
> #0  _raw_spin_lock (lock=0xc06c0c60) at lib/spinlock_debug.c:108
> #1  0xc056ac42 in _spin_lock (lock=0xc06c0c60) at kernel/spinlock.c:182
> #2  0xc011c3bb in vprintk (fmt=0xc0649c00 "<0>BUG: spinlock %s on
> CPU#%d, %s/%d\n",
>     args=0xc1167a84 "") at kernel/printk.c:534
> #3  0xc011c6c7 in printk (fmt=0xc0649c00 "<0>BUG: spinlock %s on
> CPU#%d, %s/%d\n")
>     at kernel/printk.c:508
> #4  0xc027be42 in spin_bug (lock=0xc06c0c60, msg=0xc065fc00
> "recursion") at lib/spinlock_debug.c:61
> #5  0xc027c178 in _raw_spin_lock (lock=0xc06c0c60) at lib/spinlock_debug.c:79
> #6  0xc056ac42 in _spin_lock (lock=0xc06c0c60) at kernel/spinlock.c:182
> #7  0xc011c3bb in vprintk (fmt=0xc0626ed0 "<1>BUG: unable to handle
> kernel paging request",
>     args=0xc1167b8c "") at kernel/printk.c:534
> #8  0xc011c6c7 in printk (fmt=0xc0626ed0 "<1>BUG: unable to handle
> kernel paging request")
>     at kernel/printk.c:508
> #9  0xc0116de4 in do_page_fault (regs=0xc1167bcc, error_code=0) at
> arch/i386/mm/fault.c:555
> #10 0xc056b11c in page_fault ()
> #11 0xc0808160 in ?? ()
> #12 0xc0626ed0 in kallsyms_token_index ()
> #13 0xc1167cac in ?? ()
> #14 0x00000001 in ?? ()
> #15 0xc0808163 in printk_buf.19225 ()
> #16 0xc1167c0c in ?? ()
> #17 0x00000000 in ?? ()

Attachment: .config
Description: Binary data