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I have been experiencing random crashes on my desktop computer. Without any distinguishable warning signal, the whole system would just stop, leaving the TTY terminals inaccessible, and not even REISUB would work, and I am then forced to do a hard reset using the power button.
My configuration is essentialy xmonad with xmobar, period. Which is also what I have on my two laptop and never gave me a stability problem. My standard sessions include having qutebrowser and chromium open, an R session, spotify (from aur), a few instances of urxvt with vim and llpp.
If relevant, I have an 256 SSD hosting arch and two 1000 HD mounted in raid with a stupid partition scheme, i.e. they are identical drives, whose file system as been partitioned into two and the two partition then form the basis of two different raid mount. This was likely a mistake (my first raid mount) but one that is time consuming to fix and I don't know if it could be the cause of the problem but is the only non-standard thing I can think of. To be clear:
sda 8:0 0 232.9G 0 disk
├─sda1 8:1 0 230M 0 part /boot
├─sda2 8:2 0 50G 0 part /
├─sda3 8:3 0 25G 0 part /var
└─sda4 8:4 0 157.7G 0 part
sdb 8:16 0 931.5G 0 disk
├─sdb1 8:17 0 200G 0 part
│ └─md0 9:0 0 199.9G 0 raid1
│ └─md0p1 259:1 0 199.9G 0 md /home
└─sdb2 8:18 0 731.4G 0 part
└─md1 9:1 0 731.2G 0 raid1
└─md1p1 259:0 0 731.2G 0 md /media/data
sdc 8:32 0 931.5G 0 disk
├─sdc1 8:33 0 200G 0 part
│ └─md0 9:0 0 199.9G 0 raid1
│ └─md0p1 259:1 0 199.9G 0 md /home
└─sdc2 8:34 0 731.4G 0 part
└─md1 9:1 0 731.2G 0 raid1
└─md1p1 259:0 0 731.2G 0 md /media/dataAt first I thought it might be due to the lack of memory (I have a small 8 gb), but I have in fact experienced situation where memory would hit the ~100% and the system would massively slow down, but in all those cases I always retained the ability to REISUB and/or eventually managed to snuck in a tty and killed a few processes. Furthermore, in recent instances of these problem my xmobar reported low level usage of ram (~55%) at the moment of the crash and I was doing very innocuos editing of a text file(though it might be, I guess, that buggy browsers spiked suddenly and frozen everything before xmobar could update).
I have been suggested to add a pagefile (and I will), but I would like suggestion on how to setup diagnostic instrument to understand this problem since, so far, I am not even sure it is caused by lack of memory. The issue has literaly just happened, but of course having to hard-reboot, DMESG contains no useful info and I don't know where to recover any useful log from the previous session.
Last edited by navi_se (2016-06-22 14:01:20)
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Hi, did you recently re-install / upgrade ?
I just re-installed arch on my Laptop two days ago, and i'm experiencing the same problem (different environment, though, with awesome).
No TTY access, no REISUB, and a broken-cd effect when listening to music. Core Temp normal. Low CPU load. i7-4600U CPU @ 2.10GHz.
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I upgrade rather frequently, but did no reistall. Furthermore, the issue as been bugging me every now and then for more than a month and survived quite a few update. My laptops, which spot an identical configuration (and one of them even smaller RAM) never experienced this.
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