cpusd looping on close() system call with EBADF error on AIX 5.3 TL 05

[michaelrsweet]

Version: 1.2-current
CUPS.org User: jldowdy

Howdy,

When I build cups version 1.2.10 on AIX 5.3 the cupsd daemon begins looping on a close() system call which receives EBADF errors. The file handle used by the close system call increments with each call.

I am using AIX version 5.3 TL 05. Below is the info regarding my C compiler.

$ gcc -v
Using built-in specs.
Target: powerpc-ibm-aix5.3.0.0
Configured with: ../configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --disable-nls --enable-languages=c,c++ --prefix=/opt/freeware --enable-threads --enable-version-specific-runtime-libs --host=powerpc-ibm-aix5.3.0.0
Thread model: aix
gcc version 4.0.0

I have attached a text file that contains the spec file that I used to build CUPS and the output from the truss command which captures the errors from the cupsd program.

Thanks,

Jamie.

[michaelrsweet]

CUPS.org User: mike

What does "ulimit -a" report?

Normally CUPS will close all files on startup (to run in "daemon" mode), based on the file descriptor limit.

Does running cupsd with the "-f" option (foreground) work?

[michaelrsweet]

CUPS.org User: jldowdy

The ulimit -a command reports:

root@naadmd11:22# ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) unlimited
stack(kbytes) 4194304
memory(kbytes) unlimited
coredump(blocks) unlimited
nofiles(descriptors) unlimited

The cupsd program runs normally in the foreground with the -f option.

I changed the ulimit for the number of file descriptors from unlimited to 4096 and cupsd runs normally in the background now. I'll insure that the number of file decriptors is not set to unlimited from now on. Thanks for your help.

Jamie.

[michaelrsweet]

CUPS.org User: mike

Fixed in Subversion repository.

I added the attached change to main() to limit the number of file descriptors we close to the first 1024...

[michaelrsweet]

"str2329.patch":

Index: main.c

--- main.c (revision 6450)
+++ main.c (working copy)
@@ -366,7 +366,7 @@

 getrlimit(RLIMIT_NOFILE, &limit);

• for (i = 0; i < limit.rlim_cur; i ++)
• for (i = 0; i < limit.rlim_cur && i < 1024; i ++)
  close(i);
  #endif /* DEBUG */
  }