Author Topic: iPad causing system crash (SOLVED)  (Read 1112 times)

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Offline Morgan700

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Re: iPad causing system crash
« Reply #15 on: April 17, 2014, 11:34:52 pm »
Here's the "mount" output after booting with the iPad attached, in case it's any use:

Code: [Select]
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
/dev/sda5 on /home type ext4 (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=lee)

Offline Mark Greaves (PCNetSpec)

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Re: iPad causing system crash
« Reply #16 on: April 18, 2014, 12:58:52 am »
Will gthumb start cleanly if the iPad is NOT attached ?
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Offline Morgan700

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Re: iPad causing system crash
« Reply #17 on: April 18, 2014, 01:35:39 am »
gThumb won't start at all now, even from the terminal.

Offline Morgan700

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Re: iPad causing system crash
« Reply #18 on: April 18, 2014, 01:40:16 am »
There may not be a link but I installed RawStudio yesterday (since removed), which performed a similar task to gThumb (but for RAW files rather than JPGs). gThumb still pops-up as the default photo importer in the dialog box, though, when I plug-in my USB card reader (even though it won't start).

Offline Morgan700

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Re: iPad causing system crash
« Reply #19 on: April 18, 2014, 11:41:45 am »
Ok, gThumb working properly today. Curious.

Offline Mark Greaves (PCNetSpec)

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Re: iPad causing system crash
« Reply #20 on: April 18, 2014, 12:53:36 pm »
There appears to be something very unstable about your system .. did you every run a memory test ? .. and check the HDD'ss SMART data ?

Doubt if this'll make a difference, but try turning off IPv6

run:
Code: [Select]
sudo gedit /etc/sysctl.conf

add these lines at the bottom:
Code: [Select]
#IPv6 configuration
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
SAVE the file and exit gedit

reload sysctl:
Code: [Select]
sudo sysctl -p

you can check if IPv6 is disabled with either
Code: [Select]
ip addr
or
Code: [Select]
ifconfig
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Offline Morgan700

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Re: iPad causing system crash
« Reply #21 on: April 20, 2014, 02:42:11 am »
Thanks again Mark. My hard-drive is fine after SMART, haven't checked the memory yet.

I edited the sysctl.conf file like you said and plugged-in my iPad. Success! Whether or not it was a fluke or a fix time will tell. I think you're right though, there's something not right with my system (curiously, though, it was fine under XP until two weeks ago).

Offline SeZo

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Re: iPad causing system crash
« Reply #22 on: April 20, 2014, 11:41:40 am »
Quote
there's something not right with my system (curiously, though, it was fine under XP until two weeks ago).

I would still run memtest (considering you have already discarded one stick) as the remaining memory module could be faulty too.
As for the difference between XP and Linux, I read it somewhere that Linux uses the memory more aggressively (compared to MS) hence the faulty ram will show up more readily.

Offline Morgan700

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Re: iPad causing system crash
« Reply #23 on: April 20, 2014, 05:55:24 pm »
That's interesting, SeZo. I ran memtest and my RAM is error-free.

Offline Morgan700

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Re: iPad causing system crash
« Reply #24 on: April 21, 2014, 02:10:26 pm »
Plugged my iPad in this lunchtime, boom. Knowing that my system will boot with it connected is something I can live with though.

Mark, should I switch IPv6 back on? Is it simply a case of deleting those lines I added to the sysctl.conf file and saving it?

Offline Mark Greaves (PCNetSpec)

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Re: iPad causing system crash
« Reply #25 on: April 21, 2014, 06:26:39 pm »
Yeah, just delete those lines, save the file, and run:
Code: [Select]
sudo sysctl -p
or reboot.
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Offline Morgan700

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Re: iPad causing system crash
« Reply #26 on: April 21, 2014, 09:54:02 pm »
Cheers.

Offline Morgan700

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Re: iPad causing system crash (SOLVED)
« Reply #27 on: May 31, 2014, 02:05:54 am »
Just a heads-up for anyone experiencing similar issues - it was my RAM. Or, should I say a lack of it. :)

Fitted another stick this week and my iPad is playing ball.

Offline Mark Greaves (PCNetSpec)

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Re: iPad causing system crash (SOLVED)
« Reply #28 on: May 31, 2014, 02:42:38 am »
Great news .. and thanks for the update :)
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