5.4.2 open issues

We try to collect significant open issues for the current 5.4.2 release cycle here. Please add your contributions/comments and fix as much as you can!

Open issues for 5.4.2

Nr	Issue	Bug/patch	Comment	Assigned to
1	error on subcontainer 'ia_addr' insert (-1)	Bug 1693039, Patch 1712645	Provide a more meaningful log message for duplicate IP addresses instead of spamming the log continuously. Fixed in 17254, 17255 and 16381, CONTAINER_INSERT logs errors with LOG_DEBUG severity.	rstory? jsafranek
2	set O_NONBLOCK on Linux!	Bug 1718296	recvfrom can block if we don't set O_NONBLOCK on Linux	?
3	hrStorageSize overflow	Bug 1743171	hrStorageSize is negative for large filesystems, although the MIB only allows values >=0.	?
4	ifTable transient interface handling (see also http://www.net-snmp.org/wiki/index.php/IfTable_indexing)	Bug 1238981, Patch 1513191	offer an (per-interface) config option how transient interfaces are handled in ifTable (same or different). A List FAQ. This feels like a new feature, and not appropriate for 5.4.x?	rstory?
5	Suppress error messages on SIGHUP	?	Remove the likely harmless, but annoying error messages on SIGHUP. A List FAQ Handled for "extend" and "monitor" directives. What others?	?
6	disman/event crash	Bug 1556259	Reported crashes in mteTrigger.c This is a race condition between (typically high-volume) request handling and trap generation. Not realistic to address for 5.4.2?	dts12
7	Solaris perl<->host issues (due to largefiles)	Bug 1486366	Solaris system-supplied Perl is compiled with largefile support. The very same options break the build of the host module, though. At least detected (and embedded perl disabled) since 5.4.pre3.	?
8	64bit nlist	Bugs 148532, 1484814, 1388562	nlist fails on 64bit systems (AIX, IRIX, Tru64). We need 64bit capable auto_nlist replacement routines. Every system has its own variant and changes are needed all over the net-snmp code. Stop-gap fix is specifying --without-kmem-usage which is possible since 5.4.rc2.	tanders
	ipAddressTable crashes with double free	Bugs 1733344, 1794532, 1857628	Crashes with double free. Full story below. Fixed in r16804 on 2008-02-14.	magfr

ipAddressTable crashes

• Problem summary: crash (double free) in ipAddressTable triggered by either duplicate IP Addresses or duplicate ifIndexes
• Status: now fixed in SVN (r16804 , see below)

• Bug tracker items
  • 1733344: 5.4+ ipAddressTable crash with double free -- still crashes with zones patch, stack trace available
  • 1794532: 5.4.1 segfault in ipAddressTable_container_load -- fixed by proposed zones patch
  • 1857628: Core dump introduced in 5.4.1
  • 1883382: Crash in CONTAINER_INSERT because of duplicate ip -- fixed by proposed zones patch
  • 1889767: segfault on sles 10 with xen kernel
  • Gentoo bug #203127 -- patch 1712645 fixes the crashes! (see [1])
  • Debian bug #451294
• List reports
  • 2007-08-14 on -coders
  • 2007-10-23 on -users
  • 2007-11-06 - 2007-11-13 on -coders -- still crashes with zones patch (stack trace available), but patch 1712645 fixes the crashes!
  • 2008-01-07 on -users
  • 2008-01-08 on -users

• Proposed patches
  • diff.ipaddress-patch-541 (rstory 2007-09-25) from bug 1733344 -- didn't fix crashes for most people, obsoleted by zones patch below
  • diff.zones-541.pat from bug 1794532 (rstory 2007-10-02) -- fixes 1794532+1883382, but not 1733344 and others!
  • net-snmp-head-shared-ip-4.patch from patch 1712645 by jsafranek -- seems to fix the crash for all people who tested it
  • alternate container-atomic-insert.patch by magfr (Jan 2008) from patch 1712645 (please also see this list discussion) -- now applied to SVN in r16804 on 2008-02-14. Testers wanted!!

• -coders discussion

Documentation and testing work for 5.4.2

Item	Comment	Assigned to
manual pages	quite a few manual pages currently ship with explicit XXX - to be filled in for 5.4.2.	Volunteers?
missing tests	We're currently missing tests for at least:  disman/event monitoring, snmpvacm extensions, snmptranslate, snmpusm DH stuff, snmptrapd walk, ...	Volunteers?