Re: strange panic, debugging help wanted..
Re: strange panic, debugging help wanted..
- Subject: Re: strange panic, debugging help wanted..
- From: William Kucharski <email@hidden>
- Date: Wed, 22 Dec 2004 12:19:43 -0700
On Dec 22, 2004, at 7:03 AM, Andrew Gallatin wrote:
Unresolved kernel trap(cpu 1): 0x300 - Data access
DAR=0x00000000000000D4 PC=0x0
00000000002CAE8
Latest crash info for cpu 1:
Exception state (sv=0x1DD39000)
PC=0x0002CAE8; MSR=0x00001030; DAR=0x000000D4; DSISR=0x40000000;
LR=0x0002
CAD8; R1=0x0CC33DB0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x0002CAD8 0x0002C8A8 0x0002C870
Proceeding back via exception chain:
Exception state (sv=0x1DD39000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x009D8500)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000;
LR=0x0000
0000; R1=0x00000000; XCP=0x00000000 (Unknown)
First, update to a new kernel! You're still running 10.3.4!
Second, the stack pointer (%r1) has been zeroed. The DAR would be what
one would expect as the instruction is probably an access of 0xD4 off
the stack.
Have your programmers check to make sure they aren't accidentally
stomping on %r1 or the save area %r1 is normally restored to before a
"blr"...
William Kucharski
email@hidden
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