Date: Fri, 14 May 2004 11:33:49 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-hackers@FreeBSD.org Cc: "Kevin A. Pieckiel" <pieckiel+freebsd-hackers@sdf.lonestar.org> Subject: Re: 5.2.1 panic Message-ID: <200405141133.49502.jhb@FreeBSD.org> In-Reply-To: <20040513171659.GA14716@SDF.LONESTAR.ORG> References: <20040513171659.GA14716@SDF.LONESTAR.ORG>
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On Thursday 13 May 2004 01:16 pm, Kevin A. Pieckiel wrote: > The situation: > > Dell PowerEdge 1750, Dual 3.2 GHz, 1 GB RAM. > Sources compiled from CVS on 4 May 2004, RELENG_5_2 branch. > > # uname -a > FreeBSD hr-stc-file2.smartrafficenter.net 5.2.1-RELEASE-p5 FreeBSD > 5.2.1-RELEASE-p5 #0: Tue May 4 11:02:47 EDT 2004 > toor@fileserver2.smartrafficenter.net:/usr/obj/usr/src/sys/FILESERVER1 > i386 > > One filesystem NFS mounted from another FBSD 4.9 box. > Samba 3.0.4 is installed and running (AD member server). > Samba is mapping home directories to the NFS-mounted files. > > When accessing a home directory from a Windows computer (trying > to read files from the NFS-mounted filesystem), the computer > panics and reboots. > > NFS support provided via modules, not compiled into kernel. > Gdb output and kernel config follow. > > Any ideas why or how to fix? > > Kevin > > > Gdb and backtrace output: > > This GDB was configured as "i386-unknown-freebsd"... > panic: page fault > panic messages: > --- > Fatal trap 12: page fault while in kernel mode > cpuid = 1; apic id = 01 > fault virtual address = 0x8 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc0519a64 Do 'l *0xc0519a64' in gdb to get the line that it actually faulted on. Since this is likely a NULL pointer deref that might help you fix the bug or at least find out its cause. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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