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I already posted the question actually (Linux Mint 17.2 suddenly loses write access to filesystem), but since it occurs rarely I need to ask again with some new info I gathered.

I suspect that this error somehow related to cron activities and/or audio card driver. Every time it happens, one of the last entries in logs is about cron and today there was some about audio driver. Here it is:

12/22/15 10:17:01 AM duat-re-P55A-UD3 CRON[2824] (root) CMD ( cd / && run-parts --report /etc/cron.hourly)

12/22/15 10:17:34 AM duat-re-P55A-UD3 pulseaudio[2501] [alsa-sink-ctxfi] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write!

12/22/15 10:17:34 AM duat-re-P55A-UD3 pulseaudio[2501] [alsa-sink-ctxfi] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_ctxfi'. Please report this issue to the ALSA developers.

12/22/15 10:17:34 AM duat-re-P55A-UD3 pulseaudio[2501] [alsa-sink-ctxfi] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.

So can somebody guess what should I do to get rid of this error?

  • Can you post your dmesg output to pastebin? I think these cron & audio messages have nothing with what symptoms you have. – user140866 Dec 22 '15 at 5:20
  • I will when it happens again. I'm not sure whether I can provoke it but I'm gonna try. – Yuri Drobkov Dec 22 '15 at 14:12
  • @siblynx, here you go pastebin.com/K2syzKVi – Yuri Drobkov Dec 26 '15 at 7:53
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http://pastebin.com/K2syzKVi: Given that you have a few EXT4-fs error's, you should run a e2fsck -f /dev/sda5 when the partition is offline (unmounted). If it's your root partition, then run a LiveCD/USB and run it from there. In short, you have filesystem errors on your /dev/sda5.

  • I tried to do so and it seems e2fsck didn't find any errors. Just as gparted. Is it really FS problem? Is there some other way to fix it? – Yuri Drobkov Dec 29 '15 at 4:00
  • If e2fsck didn't found any errors and your dmesg still emits this error message, then there maybe a ext4 kernel bug. In 17.2 I remember kernel version is 4.2.x. But if there are more different errors you did not seen before, then this is possible sign of drive failure. – user140866 Dec 29 '15 at 4:04

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