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