Messages in this thread | | | Date | Fri, 7 Nov 2008 10:03:04 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] add /proc/pid/stack to dump task's stack trace |
| |
btw., the feature works beautifully:
task sleeping/blocked:
# cat /proc/1/stack [<ffffffff802bfe75>] do_select+0x51a/0x582 [<ffffffff802c0059>] core_sys_select+0x17c/0x218 [<ffffffff802c0344>] sys_select+0x99/0xc1 [<ffffffff8020c23b>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff
task running on this CPU:
# cat /proc/self/stack [<ffffffff80216f79>] save_stack_trace_tsk+0x26/0x44 [<ffffffff802f59a5>] proc_pid_stack+0x6e/0xd3 [<ffffffff802f6da3>] proc_info_read+0x68/0xba [<ffffffff802b2f17>] vfs_read+0xa9/0xe3 [<ffffffff802b301f>] sys_read+0x4c/0x73 [<ffffffff8020c23b>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff
task running on another CPU in user-space:
# cat /proc/18579/stack [<ffffffffffffffff>] 0xffffffffffffffff
task running on another CPU in kernel-space:
# cat /proc/18579/stack [<ffffffff8026f111>] audit_syscall_exit+0x9c/0xed [<ffffffff80214b49>] syscall_trace_leave+0x94/0xbb [<ffffffffffffffff>] 0xffffffffffffffff
Ingo
| |