On 13 Jan, Don Lewis wrote: > I'm getting a repeatable panic when trying to build openoffice with a > 2005-01-12 kernel and world. I manually fsck'ed the file system > immediately before the build. The first panic happened during the > patching phase of the build. I tried again and this time the panic > happened during configuration. > > dev = da0s2a, block = 5090392, fs = /mnt > panic: ffs_blkfree: freeing free block > cpuid = 0 > KDB: enter: panic > [thread pid 55 tid 100043 ] > Stopped at kdb_enter+0x2c: leave > db> tr > Tracing pid 55 tid 100043 td 0xc22fa450 > kdb_enter(c0848a40,100,c22fa450,1361b80,4b5) at kdb_enter+0x2c > panic(c085f39d,c085f37d,c26cc280,4dac58,0) at panic+0x17f > ffs_blkfree(c2863800,c2987114,4dac58,0,4000) at ffs_blkfree+0x3a0 > indir_trunc(136b060,0,0,c,0,e4d5bc4c) at indir_trunc+0x1bf > handle_workitem_freeblocks(0,0,0,1,0) at handle_workitem_freeblocks+0x2e6 > process_worklist_item(41e7112d,0,0,c247d2bc,23) at process_worklist_item+0x1c0 > softdep_process_worklist(0,29,41e7112d,1,0) at softdep_process_worklist+0x66 > sched_sync(0,e4d5bd48,0,c0677b60,0) at sched_sync+0x3b2 > fork_exit(c0677b60,0,e4d5bd48) at fork_exit+0x7e > fork_trampoline() at fork_trampoline+0x8 > --- trap 0x1, eip = 0, esp = 0xe4d5bd7c, ebp = 0 --- > > The kernel was built with INVARIANTS, WITNESS, and DEBUG_VFS_LOCKS. > > I was able to get a crash dump from the first panic, so at least doadump > works for me. > > After the crash, fsck reports some unexpected damage: > PARTIALLY TRUNCATED INODE I=127552 > but this inode doesn't seem to be associated with the block number in > the panic message. > % fsdb /dev/da0s2a > ** /dev/da0s2a (NO WRITE) > Editing file system `/dev/da0s2a' > Last Mounted on /mnt > current inode: directory > I=2 MODE=40755 SIZE=512 > MTIME=Feb 14 11:55:43 2004 [0 nsec] > CTIME=Feb 14 11:55:43 2004 [0 nsec] > ATIME=Jan 13 16:15:58 2005 [0 nsec] > OWNER=root GRP=wheel LINKCNT=7 FLAGS=0 BLKCNT=4 GEN=53557245 > fsdb (inum: 2)> inode 127552 > current inode: regular file > I=127552 MODE=100644 SIZE=1932 > MTIME=Dec 22 07:47:38 2003 [0 nsec] > CTIME=Dec 22 07:47:38 2003 [0 nsec] > ATIME=Dec 22 07:57:30 2003 [0 nsec] > OWNER=root GRP=wheel LINKCNT=1 FLAGS=0 BLKCNT=4 GEN=1442a6af > fsdb (inum: 127552)> blocks > Blocks for inode 127552: > Direct blocks: > 533086 (1 frag) Some other interesting bits of data: The file in question is /mnt/usr/ports/editors/openoffice-1.1/work/config_office/configure The inode number of this file is same as the inum parameter to ffs_blkfree(). The panic occurs while this script is being executed. Some more of the fsck output: ** /dev/da0s2a (NO WRITE) ** Last Mounted on /mnt ** Phase 1 - Check Blocks and Sizes PARTIALLY TRUNCATED INODE I=1275522 SALVAGE? no INCORRECT BLOCK COUNT I=1275522 (416 should be 704) CORRECT? no INCORRECT BLOCK COUNT I=1282133 (704 should be 384) CORRECT? no It looks like inode 1282133 has been deleted because I can't find it in the file system tree. If I use fsdb to find the first few block numbers and dump them out, I see the following: # Generated by GNU Autoconf 2.59. # # Copyright (C) 2003 Free Software Foundation, Inc. # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## --------------------- ## ## M4sh Initialization. ## ## --------------------- ## # Be Bourne compatible if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on ${1+"$_at_"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$_at_"}'='"$_at_"' elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then set -o posix fi DUALCASE=1; export DUALCASE # for MKS sh # Support unset when possible. if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then as_unset=unset else as_unset=false fi # Work around bugs in pre-3.0 UWIN ksh. $as_unset ENV MAIL MAILPATH PS1='$ ' PS2='> ' PS4='+ ' # NLS nuisances. for as_var in \ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ LC_TELEPHONE LC_TIME do if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then eval $as_var=C; export $as_var else $as_unset $as_var fi done [snip] whereas .../work/config_office/configure starts out: #! /bin/sh # From configure.in Revision: 1.55.6.10 . # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.59. # # Copyright (C) 2003 Free Software Foundation, Inc. # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## --------------------- ## ## M4sh Initialization. ## ## --------------------- ## # Be Bourne compatible if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on ${1+"$_at_"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$_at_"}'='"$_at_"' elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then set -o posix fi DUALCASE=1; export DUALCASE # for MKS sh # Support unset when possible. if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then as_unset=unset else as_unset=false fi # Work around bugs in pre-3.0 UWIN ksh. $as_unset ENV MAIL MAILPATH PS1='$ ' PS2='> ' PS4='+ ' # NLS nuisances. for as_var in \ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ LC_TELEPHONE LC_TIME do if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then eval $as_var=C; export $as_var else $as_unset $as_var fi done It looks like the configure script has just been regenerated and a bug is being triggered by executing the script shortly after the script file was regenerated and before softupdates has flushed the changes to disk. I cleaned things up and ran "make extract". I don't see anything that has the contents seen in inode 1282133, so I suspect it is a temporary file. The configure script starts off: #! /bin/sh # From configure.in Revision: 1.55.6.9.4.2 . [snip] so the configure script is definitely being regenerated (and the configure.in script is $Revision: 1.55.6.10). The file system in question is UFS2 with the default 16K/2K block/fragment sizes.Received on Fri Jan 14 2005 - 02:26:06 UTC
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