Summary: Kernel 2.2.19 hang [stuck on TLB IPI wait (CPU#0)] Description: After recently upgrading the kernel on a production server to kernel 2.2.19 with the reiserfs patch and kernel-patch-2.2.19-ide from Andre Hendrick, the system became hung. The server was responsive to ping but ssh and http service stopped working until we rebooted. The hang did not happen instantly, but took several days of uptime before the system hung. Looking through the logs we noticed that "stuck on TLB IPI wait (CPU#0) was logged 128 times in one second. Also during that second, 4443 packets were rejected by the kernel coming in on eth0, of which 2681 were aimed at port 137. These packets came from 60 addresses not on our local network (packets destined to 137 on our local network are rejected, but not logged). Of other note was this kernel message: "dst cache overflow" "last message repeated 9 times". Since this did not crash the machine, there is no oops output. We were running the mon package from 3 other servers during this time and noticed shortly after the hang that several services were failing (ssh, http, etc). Even ping failed a few times. Kernel Version: Linux version 2.2.19 (cjf@linux00) (gcc version 2.95.2 20000220 (Debian GNU/Linux)) #1 SMP Tue Jun 26 11:55:50 EDT 2001 Output from ver_linux: Linux www.fi.edu 2.2.19 #1 SMP Tue Jun 26 11:55:50 EDT 2001 i686 unknown Gnu C 2.95.2 Gnu make 3.79.1 binutils 2.9.5.0.37 util-linux 2.10f modutils 2.3.11 e2fsprogs 1.18 Linux C Library 2.1.3 ldd: version 1.9.11 Procps 2.0.6 Net-tools 1.54 Console-tools 0.2.3 Sh-utils 2.0 Modules Loaded CPU Info: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 3 cpu MHz : 933.040 cache size : 256 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 3 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 psn mmx fxsr xmm bogomips : 1854.66 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 3 cpu MHz : 933.040 cache size : 256 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 3 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 psn mmx fxsr xmm bogomips : 1861.22 SCSI Info: Host: scsi0 Channel: 00 Id: 04 Lun: 00 Vendor: ARCHIVE Model: Python 04106-XXX Rev: 743B Type: Sequential-Access ANSI SCSI revision: 02 Interrupts (/proc/interrupts): CPU0 CPU1 0: 5674938 5598011 IO-APIC-edge timer 1: 1 1 IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 8: 0 1 IO-APIC-edge rtc 10: 1829310 1817099 IO-APIC-level Mylex DAC960PTL1, eth0 11: 18 18 IO-APIC-level aic7xxx 13: 1 0 XT-PIC fpu NMI: 0 ERR: 0 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/