Date: Fri, 6 Dec 1996 03:10:49 -0800 (PST) From: asami@freebsd.org (Satoshi Asami) To: current@freebsd.org Subject: weird crash Message-ID: <199612061110.DAA06666@silvia.HIP.Berkeley.EDU>
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I got a strange-looking panic on our package building machine. It has been crashing left and right due to the ahc driver problems, so this may be related to it, but I thought I'd report it anyway 'cause it looks quite scary. === ## echo bt | gdb -k kernel.43 vmcore.43 GDB is free software and you are welcome to distribute copies of it under certain conditions; type "show copying" to see the conditions. There is absolutely no warranty for GDB; type "show warranty" for details. GDB 4.13 (i386-unknown-freebsd), Copyright 1994 Free Software Foundation, Inc...(no debugging symbols found)... IdlePTD 1fc000 current pcb at 0x1e2f44 panic: blkfree: freeing free block #0 0xf0114b03 in boot () (kgdb) #0 0xf0114b03 in boot () #1 0xf0114dc2 in panic () #2 0xf019641b in ffs_blkfree () #3 0xf01983e3 in ffs_truncate () #4 0xf019bdb9 in ufs_inactive () #5 0xf0133263 in vrele () #6 0xf01ae0a9 in vnode_pager_dealloc () #7 0xf01ad5e6 in vm_pager_deallocate () #8 0xf01a94c0 in vm_object_terminate () #9 0xf01a92fb in vm_object_deallocate () #10 0xf01331ac in vrele () #11 0xf0133157 in vput () #12 0xf019f1ec in ufs_remove () #13 0xf01353c9 in unlink () #14 0xf01bb447 in syscall () #15 0x20064f41 in ?? () #16 0x3c5a in ?? () #17 0x1095 in ?? () (kgdb) # === The system was running two compiles. P5-200, system on wd0 (it was a donation), /usr/src and /usr/ports on sd0 (Seagate 15150WC), 3940UW. No ccd at the moment. sd0 is mounted async. I didn't see any ahc-related error messages in /var/log/messages, but of course it's possible that the sync didn't come soon enough. I have seen a couple of panic's (out of 30 or so in the past few weeks) with this particular message. All others say something related to ahc. Satoshi
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