Re: libc/1279: connect() hangs w/o timing out

[Bobby Krupczak]

http://bugs.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=default&pr=1279

Hi!

We think we have encountered this same bug with glibc on RH 6, 7, 7.1
kernels 2.2.x and 2.4.x and glibc

evil.empire.com%uname -a
Linux evil.empire.com 2.2.5-15 #1 Mon Apr 19 23:00:46 EDT 1999 i686 unknown
evil.empire.com%rpm -qa | grep glibc
glibc-2.1.1-6

zapdos%uname -a
Linux zapdos 2.4.2-2 #1 Sun Apr 8 20:41:30 EDT 2001 i686 unknown
zapdos%rpm -qa | grep -i glib
glibc-2.2.2-10

evil.empire.com%ldd collector.exe
        libc.so.6 => /lib/libc.so.6 (0x4001a000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)

zapdos%ldd ./collector.exe
        libc.so.6 => /lib/i686/libc.so.6 (0x40021000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)

Basically, we are doing something similar.  We are using SIGALRM to 
break out of various socket and other system calls.  If we block on 
connect(), we catch SIGALRM but then seem to go back into connect and 
sleep for a long long time before it occassionally resumes.

Has this bug been fixed in subsequent glibc releases?  My ass hurts from 
all the buckshot I've taken over this potential bug.

Thanks!

Bobby
address@hidden