Ticket #118 (closed defect)

Opened 12 months ago

Last modified 11 months ago

XCache SMP problem, whole linux system crash

Reported by: axel Owned by: moo
Priority: major Milestone: 1.2.2
Component: cacher Version: 1.2.1
Keywords: RHEL, Content switch, Kernel Cc: asauerhoefer@…
Blocked By: PHP Version: 5.2
Application: Need User Feedback: no
Other Exts: SAPI: apache2handler
Probability: Blocking:

Description

Hi,

today i tested xcache on a rhel5 server. I started some stress test with http_perf. After 10-20 seconds my system crashes completly. No keyboard response, no shell nothing. The only way is to restart the server.

I'm using Apache 2 ( default rhel5 package ), php is self compiled and installed as apache module. I use the worker mpm, so php is thread safe compiled.

The server has 2 cpu.

If i set xcache.count to 3 ( cpu count + 1 ) the server crashes. If i set xcache.count 1 or 2 the server doesn't crash.

If i run my test without xcache the server don't crash.

I attached some infos about cpu, vmstat ...

Attachments

xcache_crash.txt (8.7 kB) - added by axel 12 months ago.

Change History

Changed 12 months ago by axel

Changed 11 months ago by trac-robot

  • status changed from new to closed
  • pending unset

This ticket was closed automatically by the system. It was previously set to a Pending status and hasn't been updated within 28 days.

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