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

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Message-ID: <5157576d0701300645r568d78cctd07ad12d4a2fc8ff@mail.gmail.com>
Date:	Tue, 30 Jan 2007 17:45:29 +0300
From:	"Tomasz Kvarsin" <kvarsin@...il.com>
To:	"Andrew Morton" <akpm@...l.org>
Cc:	"Ingo Molnar" <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [BUG] 2.6.20-rc3-mm1: can not mount root

On 1/30/07, Tomasz Kvarsin <kvarsin@...il.com> wrote:
> On 1/30/07, Andrew Morton <akpm@...l.org> wrote:
> > On Fri, 5 Jan 2007 17:20:38 +0300
> > "Tomasz Kvarsin" <kvarsin@...il.com> 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 ?? ()
> >
> > Tomasz, is this still happening in 2.6.20-rc6-mm3?
> >
>
> Have no idea, I tryied to test 2.6.20-rc6-mm2, but
> build failed, I will try -mm3.
>

2.6.20-rc6-mm3 seems to work ok.
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