Re: fsck.reiser4 segfaults

["Vladimir V. Saveliev" <vs@namesys.com>]

Hello

On Fri, 2006-03-31 at 20:21 +0200, Sarath Menon wrote:
> reiserfsprogs and libaal are both 1.0.5. I'll give you the dmesg
> output tommorow - I need to get a livecd with reiser4 patches - its
> more difficult than I initially thought ;)
> 
> Here's the gdb bt output - that's the max that I can provide today.
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x40052dd1 in repair_filter_update_traverse () from /tmp/reiser4/lib
> (gdb) bt
> #0  0x40052dd1 in repair_filter_update_traverse () from /tmp/reiser4
> #1  0x40015959 in reiser4_tree_trav_node () from /tmp/reiser4/lib/li
> #2  0x40015938 in reiser4_tree_trav_node () from /tmp/reiser4/lib/li
> #3  0x40052356 in repair_filter_traverse () from /tmp/reiser4/lib/li
> #4  0x40051c8c in repair_filter () from /tmp/reiser4/lib/librepair-1
> #5  0x400575ea in repair_check () from /tmp/reiser4/lib/librepair-1.
> #6  0x0804a1cb in main ()
> #7  0x4102eda6 in __libc_start_main () from /lib/libc.so.6
> 
> I'll post the dmesg output tommorow.
> 

I would like to debug this problem. Can you please do
debugfs.reiser4 /dev/thatdevice -P | bzip2 -c > reiser4-metadata.bz2
and put resulting file somewhere for downloading. That should make
debugging easier.

> Thanks,
> Sarath
> 
> On 3/31/06, Vladimir V. Saveliev <vs@namesys.com> wrote:
> > Hello
> >
> > On Fri, 2006-03-31 at 16:21 +0200, Sarath Menon wrote:
> > > Hello,
> > >
> > > I've been using reiser4 for more than a year without any problems. The
> > > filesystem performance has been commendable to say the least.
> > > Yesterday, I had to powercycle my pc (due to a dma hang with my cd
> > > drive - happens occasionaly) and after the reboot, grub would not
> > > load. I use a single root partition (/boot inclusive) and the patched
> > > grub sources.
> > >
> > > I've tried booting into knoppix and compiling reiser4progs and running an
> > fsck.
> > >
> > > This is what I get -:
> > > Master super block (16):
> > > magic:          ReIsEr4
> > > blksize:        4096
> > > format:         0x0 (format40)
> > > label:          <none>
> > >
> > > Format super block (17):
> > > plugin:         format40
> > > description:    Disk-format for reiser4.
> > > magic:          ReIsEr40FoRmAt
> > > flushes:        0
> > > mkfs id:        0x3a4f3c7b
> > > blocks:         2443880
> > > free blocks:    428490
> > > root block:     743745
> > > tail policy:    0x2 (smart)
> > > next oid:       0xf63a06
> > > file count:     469920
> > > tree height:    5
> > > key policy:     LARGE
> > >
> > >
> > > CHECKING STORAGE TREE
> > > FSCK: Node (743744), item (0), unit (0): Points to the block (743745)
> > > which is in the tree already.
> > > The whole subtree is skipped.
> > > Segmentation fault
> > >
> >
> > can you please run dmesg after that and send its output?
> >
> > > debugfs.reiser4 also segfaults, and a mount also fails, it complians
> > > of a duplicate key. (I can't post the exact message because the second
> > > livecd doesn't have X or any mail client :(
> > >
> > >
> > > Cheers,
> > > Sarath
> > >
> > > --
> > > I presume, when you pronounce iptables, you say that you are peeing tables
> > >
> >
> >
> 
> 
> --
> --------------------------
> I presume, when you pronounce iptables, you say that you are peeing tables
>