Segmentation fault and (likely) file system bug while removing gnome-extra

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Segmentation fault and (likely) file system bug while removing gnome-extra

arch general mailing list-2
Hi, All.

For several reasons I decided to remove the group 'gnome-extra'
from my system. During the uninstallation, something went wrong.

For a 'funny' reason, which I may explain later, I wasn't able
to post the error log in the form of text here, so I will upload
a photo as an attachment[1] with this mail...

So, I switched to a getty and started the uninstallation. No
errors occourred until it reached the 15th package. The package
name was 'telepathy-idle'. All of a sudden the system printed
a large section of dmesg, saying something like it had run into
a kernel bug(?). The pacman was then killed, leaving the zsh
reporting a segmentation fault...

I felt the possibility that I wasn't able to handle this problem
on my own, so I took a photograph using my mobile without even
thinking, which proved to be useful later. Then I ran

# dmesg >> /root/dmesg.output

hoping to save the error log. I tried to restart the
uninstallation, but the pacman freezed. Even pressing CTRL-C
didn't work. I switched to another getty attemptting to terminal
in, but after I entered 'root' and pressed ENTER, no any output.
The course was just left there, blinking. Having no choice, I
reboot the system using the magic sysrq keys...

Rebooted, I checked the package changes. Confusingly, no packages
was removed, even the previous should-be-removed 15 ones! Bad
feeling about this, I checked the /root directory, and here came
the most confusing part: The dmesg.output file was GONE! It
seemed that all the data that should have been written to the
disk were discarded...

(And that's the reason why I have to post the error log in the
 form of shooted image... Somehow, I found myself a potential
 prophet... :P JUST KID...)

Judged by this, together with the previous error log, I would
say it's a file system bug... But, confused, how can an
uninstallation of packages end up like this way? :(

I would appreciate any help from you guys. Truly would. Thank
you in advance! :)

PS: I'm not going to post my pacman.conf here because all
    modification I had ever done to this file was to enable the
    color output. I suppose it can be excluded from the possible
    causes... And if necessary, I would recur the
    uninstallation with '--debug' flag enabled and report
    it to the upstream developer...

[1] Upadte: Unable to upload the image file because it's too
            big to be attached in this mailing list... So I
            uploaded it to a local website and I will post the
            image address here.

Image Address: http://imgsrc.baidu.com/forum/pic/item/7bf9f2c4b74543a9b
9da16cf14178a82bb0114d4.jpg


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Re: Segmentation fault and (likely) file system bug while removing gnome-extra

arch general mailing list-2
Op 14 mei 2017 01:15 schreef "Robert W0ng via arch-general" <
[hidden email]>:

Hi, All.

For several reasons I decided to remove the group 'gnome-extra'
from my system. During the uninstallation, something went wrong.

[...]


. All of a sudden the system printed
a large section of dmesg, saying something like it had run into
a kernel bug(?). The pacman was then killed, leaving the zsh
reporting a segmentation fault...

[Changes lost after reboot]

Sounds like hardware troubles to me. You might want to run an (extensive)
memtest.
It could be something else, but faulty memory is not uncommon and usually
my first suspect.

You also try a long SMART test of the storage. That could give some insight
into possible troube.

Mvg, Guus Snijders