From: Richard Weinberger <richard@nod.at>
To: Thomas Meyer <thomas@m3y3r.de>,
Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Cc: "user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] [PATCH v3] um: Switch clocksource to hrtimers
Date: Sat, 31 Oct 2015 16:21:31 +0100 [thread overview]
Message-ID: <5634DC7B.3010707@nod.at> (raw)
In-Reply-To: <1446304594.3238.11.camel@m3y3r.de>
Am 31.10.2015 um 16:16 schrieb Thomas Meyer:
> mhh. strange. I didn't see this behaviour on my machine, but my machine
> is a rare single core system so, likely a race condition while relaying
> the timer interrupt to the userspace process.
Here I can trigger it by starting UML, logging in and waiting ~5min.
Then i try to run "top" --> top hangs forever.
> But I'm out of ideas how this could happen!
Maybe some stupid timeslice over/underflow.
> what happens when you send the hanging process a SIGVTALRM signal? does
> it proceed correctly?
You mean sending SIGVTALRM to the UML host process?
It runs normally, I can also login on other ttys.
Thanks,
//richard
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next prev parent reply other threads:[~2015-10-31 15:21 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 8:42 [uml-devel] [PATCH v3] um: Switch clocksource to hrtimers Anton Ivanov
2015-10-25 18:46 ` Anton Ivanov
2015-10-26 10:12 ` Richard Weinberger
2015-10-29 6:23 ` Anton Ivanov
2015-10-31 13:54 ` Richard Weinberger
2015-10-31 15:10 ` Thomas Meyer
2015-10-31 15:13 ` Richard Weinberger
2015-10-31 15:16 ` Thomas Meyer
2015-10-31 15:21 ` Richard Weinberger [this message]
2015-10-31 15:24 ` Thomas Meyer
2015-10-31 15:30 ` Richard Weinberger
2015-10-31 15:44 ` Thomas Meyer
2015-10-31 16:22 ` Anton Ivanov
2015-10-31 19:08 ` Richard Weinberger
2015-10-31 20:17 ` Anton Ivanov
2015-10-31 19:06 ` Richard Weinberger
2015-11-02 8:14 ` Anton Ivanov
2015-11-02 8:37 ` Richard Weinberger
2015-11-02 8:41 ` Anton Ivanov
2015-11-02 8:52 ` Richard Weinberger
2015-11-02 8:57 ` Anton Ivanov
2015-11-02 9:12 ` Richard Weinberger
2015-11-02 9:53 ` Anton Ivanov
2015-11-02 10:01 ` Richard Weinberger
2015-11-02 10:59 ` Anton Ivanov
2015-11-02 11:00 ` Anton Ivanov
2015-11-02 14:30 ` Anton Ivanov
2015-11-02 15:25 ` Richard Weinberger
2015-11-02 16:19 ` Anton Ivanov
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