http://bugzilla.novell.com/show_bug.cgi?id=533522 User jbeulich@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=533522#c14 --- Comment #14 from Jan Beulich <jbeulich@novell.com> 2009-11-13 01:46:37 MST --- The oops in #12 shows that something wrote a breakpoint insn at the beginning of sys_read() - I don't think we enable kprobes, kgdb, or kdb to actively do any such by default, and hence I would conclude it must have been some external entity. I wonder however whether the most recently loaded module (preloadtrace) does anything like that (it's name might indicate such). This appears to come from a KMP that I can't locate the source of, but it living in /lib/modules/2.6.31.5-0.1-desktop/systemtap/ certainly suggests it might be the one causing the issue. If there is any sort of [improper] external changing of the code, then stack corruption (subsequently leading to register corruption) is certainly possible anywhere. And yes, the stack is offset by exactly one quadword in #11. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.