Bug 23458

Summary:	profiing timer expired error
Product:	Base System	Reporter:	mark.rowlands <mark.rowlands>
Component:	misc	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any

Description mark.rowlands 2000-12-11 11:10:01 UTC

seemingly random profile timer expired errors experienced after installing 4.2R on a previously functioning 4.1.1-Stable system.
This problem existed on 4.1R but disappeared after cvsup on 26-09-00
Other users had this problem...all had qlogic 1040 or 1080 scsi cards.
commenting out the psignal(p, SIGPROF); line in kern_clock.c seemed to help nsayer@quack.kfu.com.

How-To-Repeat: install 4.1R or 4.2R and boot or try any long running process....delete a directory or cvsup or run  make buildworld...

Comment 1 iedowse freebsd_committer

2001-11-18 16:41:52 UTC

State Changed
From-To: open->closed


Most cases of unexpected SIGPROFs were caused by an overflow of 
the per-process kernel stack. The size of this stack was increases 
recently, so a recent -STABLE will not have this problem.