On Jan 07, 2002 17:24 +0100, Carsten Otte wrote: > We encountered a reproduceable problem with ext3: > When issuing a FIBMAP ioctl for a block written right before while > the FS is under high load (RH build universe), the assertion > !journal->j_running_transaction fails at the bottom of journal_flush() > in fs/jbd/journal.c. > We encountered this problem with the arch=s390x (64 bit big endian) > bootloader zipl, I'll try to reproduce it with 2.4.latest on arch=i386. > I'll try > to create a stack backtrace as well by inserting a BUG();. > > Strace of problem: > ioctl(5, FIBMAP, 0x1ffffffe528) = 0 > close(5) = 0 > write(4, "\0\342\0\6\4\20\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., > 4096) = 4096 > ioctl(4, FIBMAP <unfinished ...> > +++ killed by SIGSEGV +++ > > Syslog output of problem: > z02 kernel: Assertion failure in journal_flush() at journal.c:1198: > "!journal->j_running_transaction" Hmm, you should get an oops and stack trace with an assertion (see J_ASSERT macro in include/linux/jbd.h). Maybe it is something with the S/390 BUG macro that is different? Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/
