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Date:      Tue, 27 Apr 2010 01:06:43 +0530
From:      "C. Jayachandran" <c.jayachandran@gmail.com>
To:        Juli Mallett <jmallett@freebsd.org>
Cc:        freebsd-mips@freebsd.org
Subject:   Re: Crashes with the current -HEAD
Message-ID:  <t2g98a59be81004261236pf417a26cye108cb2ccb823d41@mail.gmail.com>
In-Reply-To: <q2jeaa228be1004231125hed2bbe9fj6680b29fdd63511a@mail.gmail.com>
References:  <g2v98a59be81004230638q91b48b47i99ec64a137790bbc@mail.gmail.com> <q2jeaa228be1004231125hed2bbe9fj6680b29fdd63511a@mail.gmail.com>

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On Fri, Apr 23, 2010 at 11:55 PM, Juli Mallett <jmallett@freebsd.org> wrote=
:
> JC,
>
> It's probably my fault if that's when your last good kernel was. =A0Do
> you mind trying updating to r206713 then r206714 then r206717 then
> r206819 and r206834? =A0Or start with r206717 and go earlier or later
> based on whether it works. =A0If you can figure out what commit was at
> fault, I'll be glad to work with you to isolate whatever's
> responsible. =A0In the meantime, I'll try to reproduce and fix this
> locally.

I checked a few versions,  r206714 does not have the crash, r206717
has. I haven't looked at the changes yet, but if you have any
suggestions let me know.


> On Fri, Apr 23, 2010 at 06:38, C. Jayachandran <c.jayachandran@gmail.com>=
 wrote:
>> I'm seeing crashes like the one below when I do a 'make -j16
>> buildworld' in the current HEAD. =A0This is without SMP enabled and
>> without any of the XLR smp changes.
>>
>> buildworld used to work on XLR with earlier kernels - the last good
>> kernel I have is around r206712. =A0Any idea what can be causing this?
>>
>> Thanks,
>> JC.
>>
>> xlrboard# =A0 =A0Mar 18 14:04:43 xlrboard kernel: BAD_PAGE_FAULT: pid
>> 12596 (cc), uid 1001: pc 0 got a read fault at 0
>> Mar 18 14:04:43 xlrboard kernel: Trapframe Register Dump:
>> Mar 18 14:04:43 xlrboard kernel: zero: 0 =A0 =A0 =A0 =A0at: 0x1000a1f4 =
=A0v0:
>> 0x7fffcf28 =A0v1: 0
>> Mar 18 14:04:43 xlrboard kernel: a0: 0x7fffd638 a1: 0x470bf8 =A0 =A0a2:
>> 0x7fffcf28 =A0a3: 0x470c24
>> Mar 18 14:04:43 xlrboard kernel: t0: 0 =A0t1: 0x4000000 =A0 t2: 0 =A0 t3=
: 0
>> Mar 18 14:04:43 xlrboard kernel: t4: 0 =A0t5: 0 =A0 t6: 0 =A0 t7: 0
>> Mar 18 14:04:43 xlrboard kernel: t8: 0 =A0t9: 0 =A0 s0: 0x7fffd638 =A0s1=
: 0
>> Mar 18 14:04:43 xlrboard kernel: s2: 0x1b =A0 =A0 =A0 s3: 0 =A0 s4: 0 =
=A0 s5:
>> 0x7fffcf31
>> Mar 18 14:04:43 xlrboard kernel: s6: 0x471398 =A0 s7: 0x3 k0: 0 =A0 k1: =
0
>> Mar 18 14:04:43 xlrboard kernel: gp: 0x1000f630 sp: 0x7fffcec8 =A0s8:
>> 0x7fffcf31 =A0ra: 0x43a200
>> Mar 18 14:04:43 xlrboard kernel: sr: 0xc013 =A0 =A0 mullo: 0 =A0 =A0 =A0=
 =A0mulhi:
>> 0 =A0 =A0 =A0 =A0badvaddr: 0
>> Mar 18 14:04:43 xlrboard kernel: cause: 0x8 =A0 =A0 pc: 0
>> Mar 18 14:04:43 xlrboard kernel: pc address 0 is inaccessible, pde =3D
>> 0x0, pte =3D 0x0
>> Mar 18 14:04:43 xlrboard kernel: BAD_PAGE_FAULT: pid 12601 (as), uid
>> 1001: pc 0x524818 got a read fault at 0x4b90
>>

JC.



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