Date: Fri, 11 Apr 1997 11:08:45 -0500 (CDT) From: Daniel Ortmann <ortmann@sparc.isl.net> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/3259: /bin/ps: kernel kernel, lockups, performance problems Message-ID: <199704111608.LAA00384@watcher.isl.net> Resent-Message-ID: <199704120400.VAA11682@freefall.freebsd.org>
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>Number: 3259 >Category: kern >Synopsis: /bin/ps: kernel kernel, lockups, performance problems >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Apr 11 21:00:01 PDT 1997 >Last-Modified: >Originator: Daniel Ortmann >Organization: n/a >Release: FreeBSD 3.0-CURRENT i386 >Environment: I am running a lightly-loaded system with very few users (all myself). My standard shell is bash2. >Description: I've been able to lockup my system, causing kernel panics, severe performance problems, etc doing the following: ps ax That's all. This began occurring on FreeBSD 3.0-current around Apr 4, 1997 (or in that general timeframe). This has happened both running as a regular user and as root. If more than a couple of these ps commands are done then the system is unable to survive ... even a shutdown causes a panic. Note: I've experienced performance problems as well. These problems have appeared to be in sendmail, the gcc compiler (a make world now takes at least 3 times longer than before!) >How-To-Repeat: ps ax should do it. if that doesn't, then try running it in bash2. if that still doesn't do it, then try it in bash2 like this: MYVAR=`ps axwwopid,command | grep 'p*s'` ... that's what led originally to my observing the problem. >Fix: I don't know how to fix it; I'm not a kernel hacker. >Audit-Trail: >Unformatted:
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