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- Newsgroups: comp.unix.programmer
- Path: sparky!uunet!wupost!sdd.hp.com!elroy.jpl.nasa.gov!ncar!noao!bordeaux.kpno.noao.edu!jdavis
- From: jdavis@bordeaux.kpno.noao.edu (Jim Davis)
- Subject: Re: spurious early wakeups by SIGALRM under SunOS 4.1
- Message-ID: <1992Sep14.223515.6843@noao.edu>
- Summary: Get patch 100458-02
- Sender: news@noao.edu
- Nntp-Posting-Host: bordeaux.kpno.noao.edu
- Organization: Blurkmann Planetarium
- References: <10728@sun13.scri.fsu.edu>
- Date: Mon, 14 Sep 1992 22:35:15 GMT
- Lines: 54
-
- In article <10728@sun13.scri.fsu.edu> mueller@pi.fsu.edu (Frank Mueller) writes:
- >Has anybody else experienced any spurious early wakeups by the timer signal
- >which was requested by a setitimer (real-time timer) under SunOS 4.1.1?
- >
- >Any ideas why this happens? Is it a known bug?
-
- Yup. Here's the patch README. BTW, mail to pi.fsu.edu bounced with a 'Host
- unknown' error...
-
- Patch-ID# 100458-02
- Keywords: signal, alarm, time, setitimer, call, deliver,sigalrm
- Synopsis: SunOS 4.1;4.1.1;4.1.2: Setitimer sometimes fails to deliver a SIGALRM.
- Date: 05-May-92
-
- SunOS release: 4.1, 4.1.1, 4.1.2
-
- Unbundled Product: N/A
-
- Unbundled Release: N/A
-
- Note: Patch release 02 is to provide a DBE 1.2 compatible version for the
- 4.1.2 version of the patch
-
- Topic: SunOS Setitimer calls.
-
- BugId's fixed with this patch: 1076393
-
- Architectures for which this patch is available: sun3, sun3x, sun4, sun4c, sun4m
-
- Obsoleted By:
-
- Patches which may conflict with this patch:
-
- Files included with this patch: README, kern_sig.o
-
- Problem Description: SunOS 4.1.1: Setitimer calls sometimes fail to deliver a SIGALRM.
-
- INSTALL:
- This example illustrates the sun4c case.
-
- As root:
-
- Save the previous object file.
- mv /sys/`arch -k`/OBJ/kern_sig.o /sys/`arch -k`/OBJ/kern_sig.o.orig
-
- Install the new file into the system configuration area.
- cp {4.1,4.1.1,4.1.2}/`arch -k`/kern_sig.o /sys/`arch -k`/OBJ
-
- Rebuild the kernel.
-
- Copy the new vmunix to /vmunix and reboot the machine.
- --
- Jim Davis | "I'm bringing the dynamite!"
- jdavis@noao.edu | -- Pete's brother Pete
-