From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1BfSTJ-000864-6B for user-mode-linux-devel@lists.sourceforge.net; Tue, 29 Jun 2004 16:57:05 -0700 Received: from nks-mail-02.nks.net ([66.152.21.101]) by sc8-sf-mx2.sourceforge.net with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.34) id 1BfSTI-0002tv-Jy for user-mode-linux-devel@lists.sourceforge.net; Tue, 29 Jun 2004 16:57:05 -0700 Message-ID: <40E20187.1050803@nks.net> From: James Neal MIME-Version: 1.0 Subject: Re: [uml-devel] [mgedmin@b4net.lt: Bug#256873: user-mode-linux: fails to start (kernel panic)] References: <20040629182711.GM5243@alcor.net> In-Reply-To: <20040629182711.GM5243@alcor.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 29 Jun 2004 19:55:51 -0400 To: Matt Zimmerman Cc: user-mode-linux-devel@lists.sourceforge.net, Marius Gedminas , 256873-forwarded@bugs.debian.org Matt Zimmerman wrote: >I am receiving many reports from my users that 2.4.26-1um is less functional >than past versions, especially (but not exclusively) where hostfs is >concerned. Are others experiencing problems as well? I am considering >reverting the Debian packages to 2.4.24-1um, which was the last version >which was stable for me (it had only one frustrating hostfs bug, where >readdir() would read forever). > > Yeah, I upgraded about a hundred (non-critical) UMLs to a straight 2.4.26-1um kernel about a two weeks ago, and immediately started getting 2-3 crashes (like the one below) per hour. When backups kicked off, they pretty much all went down at the same time. (Unfortunately, I hadn't added automatic backtracing to the UMLazi codebase yet, so I didn't get backtraces.) I ended up going with a 2.4.26 kernel, with the 2.4.24-1um UML patch, and http://vs165141.v.sectoor.de/uml-2.4.26-cmpxchg.patch . This combination is running over 600 UMLs for 8 days without a crash. -James >----- Forwarded message from Marius Gedminas ----- > > [...] > Checking that ptrace can change system call numbers...OK > openpty failed to allocate a pty > openpty failed to allocate a pty > POSIX conformance testing by UNIFIX > process 553 exited with status 0 > Kernel panic: wait_for_stop failed to wait for 553 to stop with 19 > > In idle task - not syncing > <6>SysRq : Show Regs > > Kernel panic: Segfault with no mm > In idle task - not syncing > <6>SysRq : Show Regs > > EIP: 0023:[] CPU: 0 Not tainted ESP: 002b:a121feb4 EFLAGS: 00010202 > Not tainted > EAX: 00000000 EBX: a02adee0 ECX: 00000001 EDX: a121c274 > ESI: 00000070 EDI: 00000007 EBP: a121fecc DS: 002b ES: 002b > Call Trace: [] [] [] [] [] > [] [] [] [] [] [] > [] [] [] [] [] [] > [] [] [] [] [] [] > [] [] [] > >The process ID (553) seems to vary, but the other numbers stay constant, >at a glance. > >----- End forwarded message ----- > > > ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel