Bug 447752 - [glibc] Frequent segfaults in libresolv-2.8.90.so
Summary: [glibc] Frequent segfaults in libresolv-2.8.90.so
Keywords:
Status: CLOSED DUPLICATE of bug 448180
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: rawhide
Hardware: x86_64
OS: Linux
low
low
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-05-21 15:46 UTC by Joachim Frieben
Modified: 2008-05-25 08:29 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2008-05-25 08:29:39 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Joachim Frieben 2008-05-21 15:46:00 UTC
Description of problem:
After upgrading to glibc-2.8.90, network is heavily affected by
a dysfunctional DNS service. Host names often fail to get resolved.
SSH connections always fail after a short period of time. This
even applies to the latest koji build.

Version-Release number of selected component (if applicable):
glibc-2.8.90-{1,2,3,4}

How reproducible:
Always.

Steps to Reproduce:
1. Open web browser.
2. Open URL.
  
Actual results:
Often an error message about an unknown server name appears
as if the server was down, or the name didn't get resolved
properly.

Expected results:
URL is loaded properly.

Additional info:
- Latency is high, and often one has to reload a web page several
  times to have it eventually be displayed.
- Regarding the SSH problems, I have spotted a related error message
  in /var/log/dmesg:

    ssh[4230]: segfault at 3 ip f063a9 sp 7fff1d20dc40 error 4 in
    libresolv-2.8.90.so[efe000+12000]

Comment 1 Joachim Frieben 2008-05-24 04:48:53 UTC
I have downgraded temporarily to glibc-2.8 and one of the stable F9
kernel. The segfault in libresolv-2.8.90.so disappears by doing so.
However, all other symptoms remain. After installing madwifi to
override the system default ath5k driver, network connectivity improves
a lot which points to a serious regression in the ath5 driver which is
responsible for the SSH drop-outs etc. This also explains why even the
latest glibc-2.8.90-4 hadn't brought much improvement.

Comment 2 Joachim Frieben 2008-05-25 08:29:39 UTC
No issue for kernels < 2.6.25.4-26.fc9, thus related to ath5k and
unlikely to depend on glibc-2.8.90.

*** This bug has been marked as a duplicate of 448180 ***


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