Bug 46957

Summary:

[Patch] Bogus return value (-1==ERESTART) of ksem_close() causes infinite loop.

Product:

Base System

Reporter:

Stefan Eßer <se>

Component:

kern

Assignee:

Alfred Perlstein <alfred>

Status:

Closed FIXED

Severity:

Affects Only Me

Priority:

Normal

Version:

5.0-CURRENT

Hardware:

Any

OS:

Any

Attachments:

Description	Flags
file.diff	none

Description Stefan Eßer freebsd_committer

2003-01-10 19:50:01 UTC

The configure script for apache hung in the test for sem_open().
Truss revealed, that ksem_close() was being called in a tight loop.
The reason is a hard-coded return value of -1 in ksem_sem_close, which
becomes the result of ksem_close. Since this value is interpreted as
ERESTART on return from the system call, the call is repeated infinitely.

Fix: Apply the following patch:
How-To-Repeat: cd /usr/ports/www/apache2
make configure

Comment 1 Stefan Eßer freebsd_committer

2003-01-10 22:09:11 UTC

Responsible Changed
From-To: gnats-admin->alfred

Assign my PR to original author of the affected function.

Comment 2 Alfred Perlstein freebsd_committer

2003-06-23 20:19:34 UTC

State Changed
From-To: open->closed

Fixed in rev 1.4 of uipc_sem.c.  Thank you.