Crashes with the current -HEAD

[C. Jayachandran]

On Fri, Apr 23, 2010 at 11:55 PM, Juli Mallett <jmallett at freebsd.org> wrote:
> JC,
>
> It's probably my fault if that's when your last good kernel was.  Do
> you mind trying updating to r206713 then r206714 then r206717 then
> r206819 and r206834?  Or start with r206717 and go earlier or later
> based on whether it works.  If you can figure out what commit was at
> fault, I'll be glad to work with you to isolate whatever's
> responsible.  In 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 at gmail.com> wrote:
>> I'm seeing crashes like the one below when I do a 'make -j16
>> buildworld' in the current HEAD.  This 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.  Any idea what can be causing this?
>>
>> Thanks,
>> JC.
>>
>> xlrboard#    Mar 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        at: 0x1000a1f4  v0:
>> 0x7fffcf28  v1: 0
>> Mar 18 14:04:43 xlrboard kernel: a0: 0x7fffd638 a1: 0x470bf8    a2:
>> 0x7fffcf28  a3: 0x470c24
>> Mar 18 14:04:43 xlrboard kernel: t0: 0  t1: 0x4000000   t2: 0   t3: 0
>> Mar 18 14:04:43 xlrboard kernel: t4: 0  t5: 0   t6: 0   t7: 0
>> Mar 18 14:04:43 xlrboard kernel: t8: 0  t9: 0   s0: 0x7fffd638  s1: 0
>> Mar 18 14:04:43 xlrboard kernel: s2: 0x1b       s3: 0   s4: 0   s5:
>> 0x7fffcf31
>> Mar 18 14:04:43 xlrboard kernel: s6: 0x471398   s7: 0x3 k0: 0   k1: 0
>> Mar 18 14:04:43 xlrboard kernel: gp: 0x1000f630 sp: 0x7fffcec8  s8:
>> 0x7fffcf31  ra: 0x43a200
>> Mar 18 14:04:43 xlrboard kernel: sr: 0xc013     mullo: 0        mulhi:
>> 0        badvaddr: 0
>> Mar 18 14:04:43 xlrboard kernel: cause: 0x8     pc: 0
>> Mar 18 14:04:43 xlrboard kernel: pc address 0 is inaccessible, pde =
>> 0x0, pte = 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.