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From: "Udo A. Steinberg" <us15@os.inf.tu-dresden.de>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: ptrace Issues
Date: Fri, 9 May 2003 00:47:59 +0200	[thread overview]
Message-ID: <20030509004759.46182eca.us15@os.inf.tu-dresden.de> (raw)

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Hi all,

I have discovered that recently I can no longer attach via strace to 
already running processes for a long time. Specifically I have a daemon which
sleeps in select and periodically wakes up from SIGALRM signals. As soon as a
signal hits, strace quits on 2.5.69, however, it works fine on 2.4.21-rc.
Can someone shed some light on what's going on?

root@Corona:~> strace -p 527
--- SIGSTOP (Stopped (signal)) ---
--- SIGSTOP (Stopped (signal)) ---
select(7, [0 3 6], [], NULL, NULL)      = ? ERESTARTNOHAND (To be restarted)
--- SIGALRM (Alarm clock) ---
root@Corona:~> echo $?
0

-Udo.

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             reply	other threads:[~2003-05-08 22:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-08 22:47 Udo A. Steinberg [this message]
2003-06-21 19:55 ` Daniel Jacobowitz

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