suse 11 kernel panic

tingwei liu tingw.liu at gmail.com
Tue Jul 24 06:20:07 EDT 2012


> BTW, I saw these lines in the oops message:
> kernel: [3077010.856312] last sysfs file:
> /sys/devices/system/cpu/cpu23/cache/index2/shared_cpu_map
>
> does your program somehow read or write to this sysfs entry?
This program doesn't operate this file. But call some syscall,such as
sched_setaffinity.
>
>> Right, This is my user space application.
>
> care to explain briefly what this program_t does?
This program is like RTSP server!
>
>> User space program can affect kernel stack? I thought this is a kernel bug!
>
> IIRC, once there is kernel bug (or maybe more than one) than enable
> user space to "implant" code in kernel space. In the same sense, it
> would be no surprise that kernel stack could be wiped out.
>
Thanks!
> --
> regards,
>
> Mulyadi Santosa
> Freelance Linux trainer and consultant
>
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com



More information about the Kernelnewbies mailing list