RE: [PATCH v2] kdump: Fix crash_kexec - smp_send_stop race in panic

2011-11-02 Thread Luck, Tony
> Instead of introducing the panic lock, as an alternative we could move > smp_send_stop() to the beginning of panic(). Eric told me that the > function is currently "insufficiently reliable" for that, but perhaps we > could make it more reliable. That's tough to do. We are in panic because somet

Re: [PATCH v2] kdump: Fix crash_kexec - smp_send_stop race in panic

2011-11-02 Thread Michael Holzheu
On Tue, 2011-11-01 at 16:04 -0400, Don Zickus wrote: > On Mon, Oct 31, 2011 at 01:34:19PM +0100, Michael Holzheu wrote: > > Hello Andrew, hello linux-arch, > > > > > Well OK. Maybe some architectures do have this problem - who would > > > notice? If that is the case, we just made the failure cas

Re: [PATCH v2] kdump: Fix crash_kexec - smp_send_stop race in panic

2011-11-01 Thread Don Zickus
On Mon, Oct 31, 2011 at 01:34:19PM +0100, Michael Holzheu wrote: > Hello Andrew, hello linux-arch, > > > Well OK. Maybe some architectures do have this problem - who would > > notice? If that is the case, we just made the failure cases much more > > common. Could you check, please? > > @linux-