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[Bug 712958] Kernel Problems Under Multi-User Loads

https://bugzilla.novell.com/show_bug.cgi?id=712958

https://bugzilla.novell.com/show_bug.cgi?id=712958#c29


--- Comment #29 from Jiri Slaby <jslaby@xxxxxxxxxx> 2011-08-23 17:12:14 UTC ---
(In reply to comment #24)
Created an attachment (id=447225)
--> (http://bugzilla.novell.com/attachment.cgi?id=447225) [details]
strace -o /tmp/vietchostsmore.out -tt -f -T vi /etc/hosts

Interesting times (100x slower than on my machine):
open("/etc/.hosts.swp", O_RDWR|O_CREAT|O_EXCL, 0600) = 4 <0.411674>
..
open("/etc/.hosts.swpx", O_RDWR|O_CREAT|O_EXCL, 0600) = 5 <0.339978>
..
close(5) = 0 <0.461197>
unlink("/etc/.hosts.swpx") = 0 <0.404862>
close(4) = 0 <0.313377>
unlink("/etc/.hosts.swp") = 0 <0.407398>
..
open("/etc/.hosts.swp", O_RDWR|O_CREAT|O_EXCL, 0600) = 4 <0.445237>
..
write(4, "..."..., 4096) = 4096 <0.417035>

sysrq-trigger was passed a "t" and this was dumped.

This is not useful much, it's full of scheduler stats. Could you run
# dmesg -c -s 1000000
and then
# echo t > /proc/sysrq-trigger
# dmesg > log
and attach log?

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