Hi List,

I would like get some valuable inputs on problem, which i am facing as below:

- strace-4.5.18
- Mips linux-2.6.32.61 with atheros wireless driver patches
- uclibc

when i run strace -d ls its showing as below:

[/root]# strace -d ls
 [wait(0x177f) = 939]
pid 939 stopped, [SIGSTOP]

[/root]# dmesg
------------[ cut here ]------------
WARNING: at kernel/sched.c:2621 wake_up_process+0x2c/0x48()
Modules linked in: pcan vcan can_isotp can_bcm can_raw can umac pps_mods ath_dev(P) ath_rate_atheros(P) wsmp ath_hal(P) asf(P) adf bridge stp llc athrs_gmac usb_storage
Call Trace:
[<80014544>] dump_stack+0x8/0x34
[<8002c7ec>] warn_slowpath_common+0x70/0x98
[<80028bd8>] wake_up_process+0x2c/0x48
[<80016250>] arch_ptrace+0x6ac/0x768
[<80048bf0>] sys_ptrace+0xcc/0x1a8
[<80004144>] stack_done+0x20/0x3c

after Ctrl+c:
^Ccleanup: looking at pid 939

I added SIGSTOP to "blocked_set" still strace is receiving SIGSTOP.

Please help to solve this issue.

Thanks & Regards,
Vamsi