segfault on apt-get upgrade

[Dorneles Tremea]

So, here's what I think is the first feisty bug (possibly related to bug #69905)... :-)

After updating my sources.list yesterday (s/edgy/feisty/g) and upgrading to feisty I'm now getting segfaults when trying to do a 'apt-get upgrade' (or 'aptitude upgrade'):

# apt-get upgrade
Segmentation faultsts... 0%

These are the new packages from feisty currently installed here:

binutils 2.17.50.0.6-0ubuntu1
libc6 2.5-0ubuntu1
base-files 3.1.16ubuntu1
gcc-4.1-base 4.1.1-18ubuntu1
linux-libc-dev 2.6.19-4.4
libgcc1 1:4.1.1-18ubuntu1
libc6-dev 2.5-0ubuntu1
binutils-static 2.17.50.0.6-0ubuntu1
libc6-i686 2.5-0ubuntu1
libstdc++6 4.1.1-18ubuntu1
linux-image-2.6.19-4-386 2.6.19-4.4

Running 'apt-get update' works fine. Installing new packages with 'dpkg -i' also works.

I can provide any additional info, if necessary.

[Dorneles Tremea (dtremea)]

Here's the output from:
# strace apt-get upgrade

[Mateusz Drożdżyński (matid)]

hanks for your bug report. Could you please try to obtain a
backtrace by following the instructions on
       http://wiki.ubuntu.com/DebuggingProgramCrash.

It would also be appreciable if you attached the output from Valgrind. To generate it, please follow the guidelines:
       http://wiki.ubuntu.com/Valgrind

This will greatly aid us in tracking down your problem.

[Dorneles Tremea (dtremea)]

Thank you Mateusz, here's the backtrace.

The Valgrind output will come as soon as I finish download those bastard 13.4MB... :-)

[Dorneles Tremea (dtremea)]

...and the Valgrind output.

Let me know if you guys need any additional info.

Thanks in advance!

[Joe Thackery (jtthackery)]

I also get a segfault, but it extends to apt-get update/upgrade/autoclean/check/autoremove/dist-upgrade. I cannot install valgrind or the yelp package to run a backtrace as I get:
sudo apt-get install valgrind
Segmentation fault (core dumped).

If there is anything I can do, let me know.
Thanks.

[Joel Stanley (shenki)]

the issue can be worked around by removing/renaming the srcpkgcache.bin and pkgcache.bin files, located in /var/cache/apt.

of possible interest is bug 61708.

Before discovering the workaround, I manually downgraded all feisty packages I thought would affect apt. The segfault still existed.

Also, I believe the .bin files were supposed to be regenerated when they became corrupted - maybe the bug is in the corruption-detection code.

[Dorneles Tremea (dtremea)]

Thanks Joel, after removing /var/cache/apt/{src,}pkgcache.bin apt is working again.

[Michael Vogt (mvo)]

The backtrace looks exactly like https://launchpad.net/distros/ubuntu/+source/apt/+bug/75273

[Gregor Rosenauer (grexe)]

same problem here after a broken Java install using Adept, on a fresh Kubuntu Gutsy 7.10 x86. The solution in comment #6 worked, thanks a lot Joel!