x86_64 system lockup from userspace using setitimer()

2007-03-13 Thread Johannes Bauer
Dear Community, I think I've encountered a bug with the Linux kernel which results in a complete system lockup and which can be started without root priviliges. It's reproducible with 2.6.20.1 and 2.6.20.2 and only x64_64 seems affected. Here's the code which triggers the bug (originally

Re: x86_64 system lockup from userspace using setitimer()

2007-03-13 Thread Andreas Schwab
Johannes Bauer [EMAIL PROTECTED] writes: Dear Community, I think I've encountered a bug with the Linux kernel which results in a complete system lockup and which can be started without root priviliges. It's reproducible with 2.6.20.1 and 2.6.20.2 and only x64_64 seems affected. I can also

Re: x86_64 system lockup from userspace using setitimer()

2007-03-13 Thread Chuck Ebbert
Johannes Bauer wrote: Dear Community, I think I've encountered a bug with the Linux kernel which results in a complete system lockup and which can be started without root priviliges. It's reproducible with 2.6.20.1 and 2.6.20.2 and only x64_64 seems affected. Here's the code which

Re: x86_64 system lockup from userspace using setitimer()

2007-03-13 Thread Thomas Gleixner
On Tue, 2007-03-13 at 16:02 -0400, Chuck Ebbert wrote: struct itimerval tim = { .it_interval = { .tv_sec = 140735669863712, .tv_usec = 4199521 }, Could this be fixed by: