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System freeze-why?
Lately I am having increasingly common occurences of freezing:
The main processes I have running are: 1) a shell script in a remote machine that checks a given directory for files and , if found, gzips and ftps them to my machine 2) a perl script on my machine that looks in a specific directory and for all files there gunzips them ,parses and stores relevant info in memory as specific datastructures. After a certain time, these datastructures are serialized and written on disk. Lately I get sometimes garbage and even pieces of the file being read written on the file with the datastructure dump, presumably this is the time of the crash. The app is running for some 3 years now, generally without problems. Every now and then, but now this is more frequent I would have a freeze Here are typical /var/log/messages relevant messages on freeze Note that a) sometimes I get a_alloc_pages message, lately not b) sometimes I get some @@@ messages, sometimes not my machine has a SCSI disk that is between 75% and 90% full(the /home partition) Kernel is SuSe8(2.4.10, I think). I would just recompile the kernel with a more recent one, but I am uncertain whether this would screw up anything else and this is a production machine. My guess is that the page_allocation error is an old kernel bug. I'm not at all sure though all crashes are related to it. I'm more worried that the freeze occurs when the app tries to write to a bad disk sector. Fs is reiser. Lately Does anyone have any suggestion on what to check and do? Thanks Jul 5 11:45:59 quality5 in.ftpd[16516]: connect from 172.16.157.2 (172.16.157.2) Jul 5 11:46:07 quality5 in.ftpd[16531]: connect from 172.16.157.2 (172.16.157.2) Jul 5 11:50:32 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:51:10 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:51:59 quality5 last message repeated 3 times Jul 5 11:51:59 quality5 kernel: VM: killing process httpd [My QUESTION: WHAT DOES httpd have to do here???] Jul 5 11:51:59 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:52:31 quality5 last message repeated 2 times Jul 5 11:53:00 quality5 last message repeated 3 times Jul 5 11:53:00 quality5 kernel: VM: killing process httpd Jul 5 11:53:00 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:18 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:19 quality5 kernel: VM: killing process httpd Jul 5 11:54:19 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:19 quality5 kernel: VM: killing process httpd Jul 5 11:54:19 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:19 quality5 kernel: VM: killing process httpd Jul 5 11:54:19 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:19 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d 2/0) Jul 5 11:54:19 quality5 kernel: VM: killing process httpd ..... Jul 13 07:28:31 quality5 syslogd 1.4.1: restart. Jul 13 07:48:04 quality5 in.ftpd[5894]: connect from 172.16.157.2 (172.16.157.2) Jul 13 07:59:00 quality5 /USR/SBIN/CRON[5905]: (root) CMD ( rm -f /var/spool/cron/lastrun/cron.hourly) Jul 13 08:28:31 quality5 -- MARK -- Jul 13 08:30:46 quality5 kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) Jul 13 08:48:33 quality5 -- MARK -- ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ Jul 13 10:21:01 quality5 syslogd 1.4.1: restart. .... Aug 4 07:23:11 quality5 in.ftpd[10047]: connect from 172.16.157.2 (172.16.157.2) @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ /usr/lib/qt-2.3.2/examples/xml/tagreader-with-features/tagreader.cpp /usr/lib/qt-2.3.2/examples/xml/tagreader-with-features/tagreader.pro /usr/lib/qt-2.3.2/examples/xml/tagreader/animals.xml /usr/lib/qt-2.3.2/examples/xml/tagreader/Makefile /usr/lib/qt-2.3.2/examples/xml/tagreader/structureparser.cpp /usr/lib/qt-2.3.2/examples/xml/tagreader/structureparser.h /usr/lib/qt-2.3.2/examples/xml/tagreader/tagreader.cpp /usr/lib/qt-2.3.2/examples/xml/tagreader/tagreader.pro /usr/lib/qt-2.3.2/examples/xmlquotes /usr/lib/qt-2.3.2/examples/xmlquotes/main.cpp /usr/lib/qt-2.3.2/examples/xmlquotes/Makefile /usr/lib/qt-2.3.2/examples/xmlquotes/moc_richtext.cpp /usr/lib/qt-2.3.2/examples/xmlquotes/quoteparser.cpp /usr/lib/qt-2.3.2/examples/xmlquotes/quoteparser.h /usr/lib/qt-2.3.2/examples/xmlquotes/quotes.xml /usr/lib/qt-2.3.2/examples/xmlquotes/README /usr/lib/qt-2.3.2/examples/xmlquotes/richtext.cpp /usr/lib/qt-2.3.2/examples/xmlquotes/richtext.h /usr/lib/qt-2.3.2/examples/xmlquotes/xmlquotes /usr/lib/qt-2.3.2/examples/xmlquotes/xmlquotes.pro /usr/lib/qt-2.3.2/extensions /usr/lib/qt-2.3.2/extensions/nsplugin /usr/lib/qt-2.3.2/extensions/nsplugin/doc /usr/lib/qt-2.3.2/extensions/nsplugin/doc/examples.doc /usr/lib/qt-2.3.2/extensions/nsplugin/doc/index.doc /usr/lib/qt-2.3.2/extensions/nsplugin/examples /usr/lib/qt-2.3.2/extensions/nsplugin/examples/grapher /usr/lib/qt-2.3.2/extensions/nsplugin/examples/grapher/graph.cgi /usr/lib/qt-2.3.2/extensions/nsplugin/examples/grapher/graph.g1n Aug 4 16:05:07 quality5 syslogd 1.4.1: restart. ..... Aug 13 00:07:06 quality5 in.ftpd[22292]: connect from 172.16.157.2 (172.16.157.2) Aug 13 00:07:08 quality5 in.ftpd[22296]: connect from 172.16.157.2 (172.16.157.2) Aug 13 00:07:09 quality5 in.ftpd[22301]: connect from 172.16.157.2 (172.16.157.2) Aug 13 00:07:11 quality5 in.ftpd[22303]: connect from 172.16.157.2 (172.16.157.2) Aug 13 00:07:13 quality5 in.ftpd[22312]: connect from 172.16.157.2 (172.16.157.2) Aug 13 07:03:17 quality5 syslogd 1.4.1: restart. Aug 13 07:03:18 quality5 modprobe: modprobe: Can't locate module block-major-11 Aug 13 07:03:19 quality5 last message repeated 31 times ...... Aug 13 21:52:57 quality5 in.ftpd[8373]: connect from 172.16.157.2 (172.16.157.2) Aug 13 21:53:03 quality5 in.ftpd[8384]: connect from 172.16.157.2 (172.16.157.2) Aug 13 21:59:00 quality5 /USR/SBIN/CRON[9042]: (root) CMD ( rm -f /var/spool/cron/l astrun/cron.hourly) ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ /usr/X11R6/share/xmclock/xmconvert.tcl /var /var/account /var/account/pacct /var/adm /var/adm/autoinstall /var/adm/autoinstall/files /var/adm/autoinstall/logs /var/adm/autoinstall/scripts /var/adm/backup /var/adm/current_package_descr /var/adm/current_pa Aug 14 08:50:16 quality5 syslogd 1.4.1: restart. .... Aug 14 22:01:34 quality5 in.ftpd[29065]: connect from 172.16.157.2 (172.16.157.2) Aug 14 22:01:38 quality5 in.ftpd[29075]: connect from 172.16.157.2 (172.16.157.2) Aug 15 17:01:33 quality5 syslogd 1.4.1: restart. Aug 15 17:01:34 quality5 modprobe: modprobe: Can't locate module block-major-11 Aug 15 17:01:35 quality5 last message repeated 31 times ....... Aug 22 17:41:15 quality5 in.ftpd[19094]: connect from 172.16.157.2 (172.16.157.2) Aug 22 17:41:17 quality5 in.ftpd[19096]: connect from 172.16.157.2 (172.16.157.2) Aug 22 17:41:22 quality5 in.ftpd[19106]: connect from 172.16.157.2 (172.16.157.2) Aug 23 07:08:43 quality5 syslogd 1.4.1: restart. Aug 23 07:08:43 quality5 modprobe: modprobe: Can't locate module block-major-11 Aug 23 07:08:45 quality5 last message repeated 31 times ..... Aug 23 21:31:34 quality5 in.ftpd[7138]: connect from 172.16.157.2 (172.16.157.2) Aug 23 21:31:40 quality5 in.ftpd[7151]: connect from 172.16.157.2 (172.16.157.2) Aug 24 15:30:49 quality5 syslogd 1.4.1: restart. Aug 24 15:30:49 quality5 modprobe: modprobe: Can't locat ...... Aug 25 12:55:45 quality5 in.ftpd[23009]: connect from 172.16.157.2 (172.16.157.2) Aug 25 12:55:50 quality5 in.ftpd[23022]: connect from 172.16.157.2 (172.16.157.2) ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@Aug 25 13:52:14 quality5 syslogd 1.4.1: restart. Aug 25 13:52:15 quality5 modprobe: modprobe: Can't locate module block-major-11 Aug 25 13:52:16 quality5 last message repeated 31 times Aug 25 13:52:19 quality5 kernel: klogd 1.4.1, log source = |
I was having freezes for a while while running Debian Testing and Mandrake Cooker. Hardware is AMD-k6. I "solved" it by re-installing Mandrake 10 vanilla. My guess is that there's something in the Xorg libraries causing this (since that was the major change between my vanilla and testing setups) but I was unable to get to the bottom of the cause. Any of those circumstances apply to you?
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What kernel sources are you using and what chipset does your motherboard have?
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KDE 3.3?
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Kernel is 2.4.18-4GB (Suse 8.0)
MB is ASUS CUv4x ASUS says chipsets are VIA 694XDP and VIA 686B Chipsets Hds are 3 Seagate Cheetah 36.7GB ULTRA (SCSI)(one of them is /home and seems to give the problem) Controller SCSI AHA 29160 No, I do not have KDE3.3, this is an older distribution Neither do I have AMD, and this is not Debian. It is very puzzling though. I'v had these freezes occur infrequently at times(almost a month or more with no problems or even twice a day) Initially I though(because there is writing to disk) this must be som edisk error, but now I am not so sure. |
IMO, three very frequent causes of freezes are:
1. Overheating 2. Overclocking 3. Bad or incompatible memory with #1 being the most likely culprit. What are your system temps, and do you use something like gkrellm to monitor them? -- J.W. |
Overheating-the ventillator seems to work
Overclocking-definitely not bad/incompatible memory Could it be bad disk sectors? |
When it freezes, does the red light / HDD activity light stays?
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The LEDs above Pause/Scroll Lock are on(green)
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Maybe its the Hard-disk.
Have you upgraded your system? Try using swaret to upgrade and see if it still hangs. |
Meaning the kernel? No, I'm still with 2.4.22
Are you suggesting 2.6.7? |
Nope, I'm still 2.4.22, I've faced hangs before but havnt yet since upgraded a few stuff. I'm on Slacware and I upgrade using Swaret.
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And try reinstalling the drivers, or reconfigre alsoconfig.
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Thanks about swaret, I was not aware.
Not sure I follow though... What drivers are you talking about? Drivers for the SCSI disks? You mean reconfigure alsaconfig? Please be more specific, if you can(or remember) Thanks again |
:D
run alsoconfig on the terminal, and follow the menu. I don't know how SuSeans upgrade, apt-get or something, but on Slackware we use Swaret to automagically upgrade. Upgrade Disk, Sound, Display if possible. |
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