I attached a text file that shows on how to recover / re-set a lost uptime span in the last record manually by editing records file. Attached due to word wrap in mails.
I will resync the whole issue. I might be testing with fsync() everywhere, cause I want to fix that truncated file issue *at the cause*. When it then still does not work as expected, I at least now, that the file is truncated even due to use of fsync() and can then file a linux kernel bug report. -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
shambhala:/var/spool/uptimed> uprecords -m 50 | grep May
14 4 days, 20:45:40 | Linux 2.6.38.5-tp42-snap Wed May 4 16:33:14 2011
my record that uptimed / Ext4 / linux kernel lost:
23 1 day , 04:02:01 | Linux 2.6.38.5-tp42-snap Mon May 9 18:08:32 2011
36 0 days, 03:57:37 | Linux 2.6.38.5-tp42-snap Mon May 9 13:20:27 2011
38 0 days, 02:38:11 | Linux 2.6.38.5-tp42-snap Wed May 4 13:54:29 2011
40 0 days, 00:48:42 | Linux 2.6.38.5-tp42-snap Mon May 9 17:18:49 2011
-> 41 0 days, 00:39:29 | Linux 2.6.38.5-tp42-snap Wed May 11 20:20:13 2011
1up in 0 days, 00:09:14 | at Wed May 11 21:08:54 2011
t10 in 5 days, 22:52:52 | at Tue May 17 19:52:32 2011
no1 in 18 days, 10:21:16 | at Mon May 30 07:20:56 2011
Crash was about 10 minutes before booting the new kernel (record 41).
I added some safety margin.
shambhala:/var/spool/uptimed> head -23 records | tail -1
100921:1304957312:Linux 2.6.38.5-tp42-snap-debug+resv-size-dirty
shambhala:/var/spool/uptimed> cp -p records
records-2011-05-11-restored-from-backup
shambhala:/var/spool/uptimed> date -d "Mon May 9 18:08:32 2011 + 2 day + 1
hour + 55 minutes"
Mi 11. Mai 20:03:32 CEST 2011
shambhala:/var/spool/uptimed> irb
irb(main):001:0> 1 * 24 * 3600 + 4 * 3600 + 2 * 60 + 1
=> 100921
irb(main):002:0> 2 * 24 * 3600 + 3600 + 55 * 60
=> 179700
irb(main):003:0> #
shambhala:/var/spool/uptimed> vim records
shambhala:/var/spool/uptimed> uprecords -m 50 | grep May
14 4 days, 20:45:40 | Linux 2.6.38.5-tp42-snap Wed May 4 16:33:14 2011
19 2 days, 01:55:00 | Linux 2.6.38.5-tp42-snap Mon May 9 18:08:32 2011
36 0 days, 03:57:37 | Linux 2.6.38.5-tp42-snap Mon May 9 13:20:27 2011
38 0 days, 02:38:11 | Linux 2.6.38.5-tp42-snap Wed May 4 13:54:29 2011
40 0 days, 00:48:42 | Linux 2.6.38.5-tp42-snap Mon May 9 17:18:49 2011
-> 41 0 days, 00:42:34 | Linux 2.6.38.5-tp42-snap Wed May 11 20:20:13 2011
1up in 0 days, 00:06:09 | at Wed May 11 21:08:54 2011
t10 in 5 days, 22:49:47 | at Tue May 17 19:52:32 2011
no1 in 18 days, 10:18:11 | at Mon May 30 07:20:56 2011
shambhala:/var/spool/uptimed> uprecords
# Uptime | System Boot up
----------------------------+---------------------------------------------------
1 18 days, 11:00:44 | Linux 2.6.37-tp42-rtime- Thu Jan 13 12:44:10 2011
2 13 days, 20:58:39 | Linux 2.6.37-rc8-tp42 Thu Dec 30 15:44:49 2010
3 12 days, 00:05:29 | Linux 2.6.37-tp42-rtime- Mon Jan 31 23:50:51 2011
4 9 days, 17:09:09 | Linux 2.6.37-tp42-rtime- Sat Feb 12 23:57:46 2011
5 8 days, 20:53:21 | Linux 2.6.38.3-tp42-snap Mon Apr 18 21:51:20 2011
6 8 days, 15:40:00 | Linux 2.6.37-tp42-rtime- Tue Feb 22 21:18:33 2011
7 7 days, 20:04:48 | Linux 2.6.38-tp42-snapsh Thu Mar 17 23:47:49 2011
8 7 days, 08:19:50 | Linux 2.6.37-rc7-tp42-at Wed Dec 22 13:02:13 2010
9 6 days, 13:27:02 | Linux 2.6.38-rc7-tp42-sn Tue Mar 8 10:23:57 2011
10 5 days, 23:32:20 | Linux 2.6.38.2-tp42-snap Tue Mar 29 22:18:29 2011
----------------------------+---------------------------------------------------
-> 41 0 days, 00:42:44 | Linux 2.6.38.5-tp42-snap Wed May 11 20:20:13 2011
----------------------------+---------------------------------------------------
1up in 0 days, 00:05:59 | at Wed May 11 21:08:54 2011
t10 in 5 days, 22:49:37 | at Tue May 17 19:52:32 2011
no1 in 18 days, 10:18:01 | at Mon May 30 07:20:56 2011
up 150 days, 06:29:06 | since Sat Dec 11 13:27:01 2010
down 1 day , 00:06:50 | since Sat Dec 11 13:27:01 2010
%up 99.336 | since Sat Dec 11 13:27:01 2010
shambhala:/var/spool/uptimed>
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