Date: Sat, 31 Jul 1999 00:19:27 +0200 From: Jeroen Ruigrok/Asmodai <asmodai@wxs.nl> To: Greg Lehey <grog@lemis.com> Cc: Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>, current@FreeBSD.ORG Subject: Re: Panic plus advice needed Message-ID: <19990731001927.A21870@daemon.ninth-circle.org> In-Reply-To: <19990730162908.B56925@freebie.lemis.com>; from Greg Lehey on Fri, Jul 30, 1999 at 04:29:09PM %2B0930 References: <19990730084532.B1396@daemon.ninth-circle.org> <19990730162908.B56925@freebie.lemis.com>
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* Greg Lehey (grog@lemis.com) [990730 11:23]: > On Friday, 30 July 1999 at 8:45:32 +0200, Jeroen Ruigrok/Asmodai wrote: > > I started a make world on my box last night and then proceeded to go to bed. > > > > When I looked at my console this morning it had sprung into DDB because > > of a panic: ffs_alloccg: map corrupted. > > The first question is: do you have a kernel with debug symbols? If > not, gdb isn't going to help you much. bde can do it with ddb (though > it's a bit late if you have the dump), but mere mortals are in trouble > without symbols. I thought I had one, but alas I didn't. *sigh* One of those days when ye bump against stuff you should've done. Learned from that in a multiple ways, so next time I got everything I need... > The first thing you should do with any dump is a backtrace (bt). The > appearance depends on how you got there. Since you appear to have > gone via ddb, your dump should look something like this: Here is at least some info: (kgdb) bt #0 0xc0155f14 in boot () #1 0xc0156249 in panic () #2 0xc01e737b in ffs_mapsearch () #3 0xc01e5cea in ffs_alloccg () #4 0xc01e5756 in ffs_hashalloc () #5 0xc01e4adc in ffs_alloc () #6 0xc01e7af0 in ffs_balloc () #7 0xc01f0a5c in ffs_write () #8 0xc01827ce in vn_write () #9 0xc01623ac in dofilewrite () #10 0xc01622bb in write () #11 0xc0225066 in syscall () #12 0xc02192b6 in Xint0x80_syscall () #13 0x807d24a in ?? () #14 0x807666d in ?? () Think I'll read up on GDB in my printed manual... Other hints/tips still welcome, I still have the dumps =) -- Jeroen Ruigrok van der Werven asmodai(at)wxs.nl The BSD Programmer's Documentation Project <http://home.wxs.nl/~asmodai>; Network/Security Specialist BSD: Technical excellence at its best Cum angelis et pueris, fideles inveniamur. Quis est iste Rex gloriae...? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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