Date: Tue, 4 May 2004 22:50:27 -0700 (PDT) From: dane foster <dene@slush.ca> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/66270: dump causes machine freeze Message-ID: <200405050550.i455oR6G095066@freefall.freebsd.org>
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The following reply was made to PR misc/66270; it has been noted by GNATS. From: dane foster <dene@slush.ca> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: misc/66270: dump causes machine freeze Date: Wed, 5 May 2004 17:41:36 +1200 Sorry, a bit more detail. First, Im using the snapshot feature of dump (dump L). Second, approx. 30 seconds after i start the dump, the entire machine freezes completely. No network, no keyboard. it requires a hard reset. This happens on two separate machines. Its a bit difficult to debug, as there's no error message before/after the machine freezes. Also, this is a production machine (mail server, and db host). Mucking about with it is sort of frowned upon. If there's any info i can provide, let me know and i'll see what i can do, crashing either host more than once or twice a week is bad though ;) /dane On May 5, 2004, at 5:04 PM, Kris Kennaway wrote: > Dane Foster wrote: > >>> Number: 66270 >>> Category: misc >>> Synopsis: dump causes machine freeze >>> Confidential: no >>> Severity: serious >>> Priority: medium >>> Responsible: freebsd-bugs >>> State: open >>> Quarter: Keywords: Date-Required: >>> Class: sw-bug >>> Submitter-Id: current-users >>> Arrival-Date: Tue May 04 18:30:20 PDT 2004 >>> Closed-Date: >>> Last-Modified: >>> Originator: Dane Foster >>> Release: 5.2.1 >>> Organization: >>> Environment: >> FreeBSD homer.connect.com.fj 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #0: >> Tue May 4 22:38:11 FJT 2004 >> root@homer.connect.com.fj:/usr/src/sys/i386/compile/IBM i386 >>> Description: > >> dump (called via amanda) with snapshots on a large, volatile >> filesystem causes the machine to freeze. no errors reported > > This PR contains even less information that your non-PR email, but > what you're describing sounds like intended behaviour. Specifically, > creating a snapshot causes all other filesystem access to pause until > the creation is complete, which can take a long time on large or > active filesystems. > > Can you please confirm that if you wait long enough the operation > completes? > > Kris >
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