Messages in this thread | | | Date | Sun, 28 Mar 1999 16:26:32 +0200 | From | Christian Bienia <> | Subject | PROBLEM: Computer freezes when writing to the log |
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[1.] One line summary of the problem: Computer freezes when writing to the log
[2.] Full description of the problem/report: I have a monochrome monitor and I use the mda drivers from Patrick J. Caulfield (patrick@pandh.demon.co.uk, available from sunsite) to access it. I use syslogd to also output all interesting information to this monitor (in syslog.conf: *.*;mail.none;news.none /dev/mono), so I see all logentries in "real-time". Since I have updated to the kernel 2.2, my system sometimes freezes: Suddenly, without any obvious reason, I neither can move the mouse nor switch to another console. My computer doesn't react on anything. Only a complete reboot does help to revive my system. There is also nothing unusual in my logs that could explain that behaviour. But I noticed that each time the system freezes, a log-entry is partially written to my monochrome monitor. The system only freezes while syslog is telling me something. As the log entry is not complete (and it doesn't show up in the logfiles after a reboot, as mentioned above), I can only guess what it is, but it seems to me that it is a "-- MARK --" message that is written to the log every 20 minutes. However I found out that I can trigger this error if x11amp is running in that moment syslogd is making his entry, but my system also freezed once when I pressed a key to deactivate DPMS.
[3.] Keywords (i.e., modules, networking, kernel): freeze, syslog, syslogd, monochrome, mda, mono
[4.] Kernel version (from /proc/version): Linux version 2.2.4 (root@central) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)) #5 Wed Mar 24 21:32:14 MET 1999
[5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) None.
[6.] A small shell script or example program which triggers the problem (if possible) Just run x11amp and wait.
[7.] Environment [7.1.] Software (add the output of the ver_linux script here) -- Versions installed: (if some fields are empty or looks -- unusual then possibly you have very old versions) Linux central 2.2.4 #5 Wed Mar 24 21:32:14 MET 1999 i686 unknown Kernel modules 2.1.85 Gnu C egcs-2.91.60 Binutils 2.9.1.0.15 Linux C Library x 1 root root 2478585 Dec 14 21:23 /lib/libc.so.6 Dynamic linker ldd (GNU libc) 2.0.7 Procps 1.2.7 Mount 2.9 Net-tools (1998-06-29) Kbd 0.96 Sh-utils 1.12 Modules Loaded ne2k-pci 8390 serial mda
x11amp is version 0.7 (precompiled, dynamically linked) mda-driver is version 0.16
[7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 0 cpu MHz : 334.099704 cache size : 512 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx osfxsr bogomips : 333.41
[7.3.] Module information (from /proc/modules): ne2k-pci 3780 1 (autoclean) 8390 6212 0 (autoclean) [ne2k-pci] serial 18356 1 (autoclean) mda 6472 1
[7.4.] SCSI information (from /proc/scsi/scsi) Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: SEAGATE Model: ST39102LW Rev: 0004 Type: Direct-Access ANSI SCSI revision: 02
[7.5.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): chris@central:/ > cat /proc/devices Character devices: 1 mem 2 pty 3 ttyp 4 ttyS 5 cua 7 vcs 10 misc 14 sound 29 fb 31 mono 36 netlink 128 ptm 136 pts
Block devices: 3 ide0 8 sd 22 ide1
chris@central:/ > cat /proc/ioports 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0070-007f : rtc 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 0220-022f : soundblaster 02f8-02ff : serial(auto) 0330-0333 : MPU-401 UART 0376-0376 : ide1 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial(auto) b800-b81f : eth0 d000-d0be : aic7xxx d800-d807 : ide0 d808-d80f : ide1
chris@central:/ > cat /proc/mtrr reg00: base=0x00000000 ( 0MB), size= 128MB: write-back, count=1 reg01: base=0x08000000 ( 128MB), size= 32MB: write-back, count=1 reg05: base=0xe3000000 (3632MB), size= 8MB: write-combining, count=2
Just tell me if you are interested in additional information, but please send me an e-mail as I don't read this mailing list regularly.
Greetings, Chris
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