Re: [BUG] 2.6.22-rc4: wait4() waiting for SIGSTOP may not return if the target process is ptraced

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To: Satoru Takeuchi <[email protected]>
Subject: Re: [BUG] 2.6.22-rc4: wait4() waiting for SIGSTOP may not return if the target process is ptraced
From: Roland McGrath <[email protected]>
Date: Thu, 7 Jun 2007 02:54:32 -0700 (PDT)
Cc: Linux Kernel <[email protected]>, Linus Torvalds <[email protected]>, Andrew Morton <[email protected]>, Oleg Nesterov <[email protected]>
In-reply-to: Satoru Takeuchi's message of Thursday, 7 June 2007 18:42:52 +0900 <87vee09k2r.wl%[email protected]>
Sender: [email protected]

The bug is in strace (and is being fixed).  It needs to use tgkill instead
of kill to send that SIGSTOP to the right thread only.  


Thanks,
Roland
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References:
- [BUG] 2.6.22-rc4: wait4() waiting for SIGSTOP may not return if the target process is ptraced
  - From: Satoru Takeuchi <[email protected]>

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