On Sun, Dec 17, 2023 at 06:55:27PM +0100, Alexander Klimov wrote:
> Much better!
>
> Program terminated with signal 11, Segmentation fault.
> #0 0x000008e920ed287f in searchdir (ino=7946491, blkno=Unhandled dwarf
> expression opcode 0xa3
> )
> at /usr/src/sbin/dump/traverse.c:474
> 474 if (TSTINO(dp->d_ino, dumpinomap)) {
> (gdb) info locals
> dblk = 0x3633633264006136 <Address 0x3633633264006136 out of bounds>
> ret = 0
> loc = 29445
> mode = Variable "mode" is not available.
> (gdb) p *dblk
> Cannot access memory at address 0x3633633264006136
> (gdb) p dp
> No symbol "dp" in current context.
> (gdb) p ip
> Variable "ip" is not available.
> (gdb) p ino
> $7 = 7946491
> (gdb) p blkno
> Unhandled dwarf expression opcode 0xa3
> (gdb) p size
> $8 = 186
> (gdb) p filesize
> Unhandled dwarf expression opcode 0xa3
> (gdb) p tapesize
> Variable "tapesize" is not available.
> (gdb) p nodump
> $9 = 0
> (gdb) p dp
> No symbol "dp" in current context.
> (gdb) p ip
> Variable "ip" is not available.
> (gdb) p loc
> $10 = 29445
> (gdb) p dblk
> $11 = 0x3633633264006136 <Address 0x3633633264006136 out of bounds>
> (gdb) p mode
> Variable "mode" is not available.
> (gdb) p ret
> $12 = 0
> (gdb)
>
> But, admittedly, I'm not very familiar with the code.
> So I can only guess. Too large offset? Too less memory? ...
>
> On 17.12.23 17:27, Otto Moerbeek wrote:
> > Rebuild with
> > cd /usr/src/sbin/dump
> > make obj
> > make clean
> > DEBUG=-g make
> >
> > And then run gdb again.
Install gdb from packages and then run egdb. It understands moden
DWARF expresssions better.
The value of size is also interesting.
Also: is your filesystem clean? To be sure, unmount and run fsck on it.
-Otto
