So, I've tried to do what's described in the wiki. This is the first
time I debug a program, so I probably did something not quite correctly,
cause I couldn't get "(gdb) backtrace full" in the beginning. But
somehow I managed to have it working (following all the instructions).
I will attach several gdb logs:
1) Backtrace through running the program ==> gdb-nautilus-1.txt
How I got this log:
I tried to start the program as described
gdb nautilus 2>&1 | tee gdb-nautilus.txt
(gdb) handle SIG33 pass nostop noprint
(gdb) set pagination 0
(gdb) run
Then in the so opened nautilus window I tried to access some directories
(external drive, File system) - nautilus hung up and nothing could open there
except for my Desktop and Documents directory, but this time I could "Stop" it
(through Stop button) and close the nautilus window.
So, I tried to continue in terminal with "(gdb) backtrace full" - it wrote me
"No stack", and for "(gdb) info registers" - it wrote "No registers". (as I've
got no backtrace in gdb-nautilus.txt, I don't attach it)
Then I've restarted the procedure all over to try it again - at this
stage nautilus was probably already not working - you will see it in the
log - nautilus didn't open through "(gdb) run", but! I could get the
backtrace this time (gdb-nautilus-1.txt) :)
The I had to reboot cause no desktop again and nautilus not working(((
and performed step 2 below
2) Backtrace for "Already running programs" ==> gdb-nautilus-1.txt
This time I did:
pidof nautilus
replied: 7185
Then gdb 2>&1 | tee gdb-nautilus-2.txt
(gdb) handle SIG33 pass nostop noprint
(gdb) set pagination 0
(gdb) attach 7185
Then (gdb) continue
no nautilus window opened (I don't know whether it should have opened). So, I
opened nautilus /home/greya/ and tried to go to File System from the left panel
- nautilus freezed completely. I did "Fore Quit" - everything on desktop
disappeared again, nautilus not working.
3) Then, in this completely freezed state I tried to do the backtrace
procedure again to see what errors it will show. I did again :
pidof nautilus
replied: 7185
Then gdb 2>&1 | tee gdb-nautilus-freezed.txt
(gdb) handle SIG33 pass nostop noprint
(gdb) set pagination 0
(gdb) attach 7185
and that's what it replied this time:
Attaching to process 7185
ptrace: Operation not permitted.
(gdb) Hangup detected on fd 0
error detected on stdin
(see gdb-nautilus-freezed.txt)
OUHH! now I cannot attach you the log files from my home directory -
While I was writing all this - nautilus must have hang up again!!! I
only opened the 3 log files concerned to copy some lines in here and now
when I try to attach a file here - my home directory doesn't open. I had
to copy these files onto my Desktop to attach them here!!!
And in general, when nautilus hangs up and when I can stop it quickly
(stop button) - I cannot access not only the external drive, but File
System directories, my home directory neither (as now) :((
** Attachment added: "gdb-nautilus-1.txt"
http://launchpadlibrarian.net/21206318/gdb-nautilus-1.txt
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Nautilus freezes completely when accessing large exterior hard drive (500Gb)
https://bugs.launchpad.net/bugs/316877
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