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Bug#383457: marked as done (nscd dies with SIGABRT with an enabled hosts cache)

Your message dated Wed, 25 Apr 2007 22:47:05 +0200
with message-id <20070425204705.GA32625@.madism.org>
and subject line Bug#383457: nscd dies with SIGABRT with an enabled hosts cache
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: nscd
Version: 2.3.6-19
Severity: normal


nscd dies on the first reload of a hosts cache entry. Disabling the hosts cache
in nscd.conf works around the problem. Relevant parts of a strace output:

# strace nscd --debug

...

epoll_wait(11, {{EPOLLRDNORM, {u32=12, u64=12}}}, 100, 29976) = 1
epoll_ctl(11, EPOLL_CTL_DEL, 12, {0, {u32=0, u64=0}}) = 0
futex(0x55555566c524, FUTEX_WAKE, 1)    = 1
epoll_wait(11, 19924: handle_request: request received (Version = 2) from PID
19931
19924:  GETAI (bugs.debian.org)
19924: Haven't found "bugs.debian.org" in hosts cache!
19924: Reloading "1000" in password cache!
19924: Reloading "www.google-analytics.com" in hosts cache!
nscd: hstcache.c:364: cache_addhst: Assertion `hst->h_addr_list[1] == ((void
*)0)' failed.
7fff3aa53950, 100, 29988) = -1 EINTR (Interrupted system call)
+++ killed by SIGABRT +++
Process 19924 detached

I'm using nscd to cache user/group from the ldap server - but turning off the
ldap service in nssswitch.conf didn't help in any way.

If there's something else I can provide or test, I'd be glad to do so.

/Daniel

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-fs1
Locale: LANG=de_CH.utf8, LC_CTYPE=de_CH.utf8 (charmap=UTF-8)

Versions of packages nscd depends on:
ii  libc6                        2.3.6.ds1-1 GNU C Library: Shared libraries

nscd recommends no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
On Thu, Aug 17, 2006 at 02:19:39PM +0200, Daniel Vetter wrote:
> Package: nscd
> Version: 2.3.6-19
> Severity: normal
> 
> 
> nscd dies on the first reload of a hosts cache entry. Disabling the hosts cache
> in nscd.conf works around the problem. Relevant parts of a strace output:
> 
> # strace nscd --debug
> 
> ...
> 
> epoll_wait(11, {{EPOLLRDNORM, {u32=12, u64=12}}}, 100, 29976) = 1
> epoll_ctl(11, EPOLL_CTL_DEL, 12, {0, {u32=0, u64=0}}) = 0
> futex(0x55555566c524, FUTEX_WAKE, 1)    = 1
> epoll_wait(11, 19924: handle_request: request received (Version = 2) from PID
> 19931
> 19924:  GETAI (bugs.debian.org)
> 19924: Haven't found "bugs.debian.org" in hosts cache!
> 19924: Reloading "1000" in password cache!
> 19924: Reloading "www.google-analytics.com" in hosts cache!
> nscd: hstcache.c:364: cache_addhst: Assertion `hst->h_addr_list[1] == ((void
> *)0)' failed.
> 7fff3aa53950, 100, 29988) = -1 EINTR (Interrupted system call)
> +++ killed by SIGABRT +++
> Process 19924 detached
> 
> I'm using nscd to cache user/group from the ldap server - but turning off the
> ldap service in nssswitch.conf didn't help in any way.
> 
> If there's something else I can provide or test, I'd be glad to do so.
> 
> /Daniel

  this is because of a corrupted (or too old) hosts database. purge it
using nscd -i hosts, or doing rm -f /var/db/nscd/hosts

  (I think there has been a format change in old libc's that we never
dealt with, and it's too late for that)

Cheers,
-- 
·O·  Pierre Habouzit
··O                                                madcoder@debian.org
OOO                                                http://www.madism.org

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