Opened 7 years ago

Closed 7 years ago

#118 closed defect

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@…
Application: PHP Version: 5.2
Other Exts: SAPI: apache2handler
Probability: Blocked By:
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 (1)

xcache_crash.txt (8.7 KB) - added by axel 7 years ago.

Download all attachments as: .zip

Change History (2)

Changed 7 years ago by axel

comment:1 Changed 7 years ago by trac-robot

  • pending changed from 1 to 0
  • Status changed from new to closed

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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