2004-09-13 21:31:31

by Leonid Kalmankin

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Subject: segfault and multiple traps on x86_64

Greetings!

In dmesg I see stuff like:

rpmbuild[3842] trap int3 rip:402d9e rsp:7fbfffb540 error:0
rpmbuild[3842] trap int3 rip:4026d1 rsp:7fbfffb538 error:0
sh[3843] trap int3 rip:415f39 rsp:7fbffff8c8 error:0
sh[3843]: segfault at 0000000000000000 rip 0000000000000000 rsp 0000007fbffff8b8 error 14
rpmbuild[3842] trap int3 rip:402dea rsp:7fbfffb540 error:0
rpmbuild[3842] trap int3 rip:4025d1 rsp:7fbfffb538 error:0
rpmbuild[3842] trap int3 rip:402ced rsp:7fbfffb540 error:0
rpmbuild[3842] trap int3 rip:4027c1 rsp:7fbffff688 error:0

segfault is scarry.
Are these traps harmless or do they mean some serious software/hardware problem?

The system is:
Fedora Core 2 x86_64, last updates, vanilla 2.6.8.1, dual AMD Opteron, 4G RAM

processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 5
model name : AMD Opteron(tm) Processor 246
stepping : 10
cpu MHz : 1992.318
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow
bogomips : 3915.77
TLB size : 1088 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp

[skipping 2nd processor info]

SY,
LVK


2004-09-14 07:43:32

by Alexander Nyberg

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Subject: Re: segfault and multiple traps on x86_64

On Mon, 2004-09-13 at 23:31, Leonid Kalmankin wrote:
> Greetings!
>
> In dmesg I see stuff like:
>
> rpmbuild[3842] trap int3 rip:402d9e rsp:7fbfffb540 error:0
> rpmbuild[3842] trap int3 rip:4026d1 rsp:7fbfffb538 error:0
> sh[3843] trap int3 rip:415f39 rsp:7fbffff8c8 error:0
> sh[3843]: segfault at 0000000000000000 rip 0000000000000000 rsp 0000007fbffff8b8 error 14
> rpmbuild[3842] trap int3 rip:402dea rsp:7fbfffb540 error:0
> rpmbuild[3842] trap int3 rip:4025d1 rsp:7fbfffb538 error:0
> rpmbuild[3842] trap int3 rip:402ced rsp:7fbfffb540 error:0
> rpmbuild[3842] trap int3 rip:4027c1 rsp:7fbffff688 error:0
>

They just chose to show a small message in the log when some program
behaves badly. Nothing to worry about, more than your programs
misbehaving.

Alex