Date: Tue, 10 Jul 2001 19:14:14 +0200 From: Tor.Egge@fast.no To: neteng@tide.iadfw.net Cc: freebsd-bugs@FreeBSD.ORG Subject: re: kern/26224: VFS Panic/SMP/CFLOW(HEAVY network)/Heavy NFS Message-ID: <200107101714.TAA11209@midten.fast.no> In-Reply-To: Your message of "Tue, 10 Jul 2001 06:20:01 -0700 (PDT)" References: <200107101320.f6ADK1152861@freefall.freebsd.org>
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The panic message and the stack backtrace indicates that a process has gone to sleep while holding a vnode interlock. When pagedaemon tries to obtain the vnode interlock (in vput() called from vm_pageout()) the machine will either hang (if the vnode interlock was held by the other CPU) or panic (if the vnode interlock was held by the same CPU). Use ps axlww -N kernel.debug.76 -M vmcore.76 to list the processes on the system when it died. Use gdb to list the kernel stack of each process. The offending process probably has an uncommon WCHAN string. - Tor Egge To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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