Query: EIP value in User mode exception frame
by Vivek Goyal
Hi Dave,
Thanks a lot for creating this list. This is definitely going to help.
I got a query right away. This is regarding the EIP displayed in "bt".
Have a look at following stack trace.
crash> bt
PID: 12632 TASK: ee01ea40 CPU: 3 COMMAND: "bash"
#0 [d829df20] crash_kexec at c013a4da
#1 [d829df28] __handle_sysrq at c0247e71
#2 [d829df54] write_sysrq_trigger at c01916d4
#3 [d829df6c] vfs_write at c015c7ca
#4 [d829df90] sys_write at c015c88c
#5 [d829dfb8] sysenter_entry at c0102da8
EAX: 00000004 EBX: 00000001 ECX: b7f18000 EDX: 00000002
DS: 007b ESI: 00000002 ES: 007b EDI: b7f18000
SS: 007b ESP: bfc1f334 EBP: bfc1f360
CS: 0073 EIP: ffffe410 ERR: 00000004 EFLAGS: 00000246
Here EIP value is "ffffe410" which is definitely not a user space address.
I am getting this value in all the kdump images I have taken.
Is it due to the fact because we are entring using sysenter. If yes then
how to get right EIP value.
Thanks
Vivek
18 years, 11 months
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reason for being
by Dave Anderson
Welcome aboard -- even if you don't want to be on deck!
My arm's been twisted into creating this list for things like
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requests, release announcements, and the like.
Actually the real impetus for this list comes from the upstream
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manner of saving kernel core dumps. And as such, the crash utility
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If you are wondering, I have seeded the subscriber list with
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guessing may bring in several more. We shall see...
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Thanks,
Dave Anderson
18 years, 11 months
- 2
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