Hi Nan hai, On 1/31/07, Zou, Nanhai <[EMAIL PROTECTED]> wrote: > > On 1/31/07, Jay Lan <[EMAIL PROTECTED]> wrote: > > > Magnus Damm wrote: > > > > kexec: Avoid migration of already disabled irqs (ia64) > > > > > > > > This patch fixes up ia64 kexec support for HP rx2620 hardware. It does > > > > this > > > > by skipping migration of already disabled irqs. This is most likely a > > > > problem > > > > on other ia64 platforms as well, but I've only tested this on one > > > > machine > > > > so far. > > > > > > I have not seen this problem on SN systems. > > > > Ok, thanks. Let me give you more details. > > > > When I perform "kexec -e" the following output appears on my serial > > console (with my patch applied). > > This patch is correct I think. I assume you will also see this bug when > trying to offline a CPU by echo 0 > /sys/devices/system/cpu/cpuX/online
You are right, I can trigger the bug that way too. And the bug goes away with the patch. Excellent! > However it will not be triggered in crash dump case which has been tested > heavily on different kind of platforms. We do not migrate IRQ at the time of > crash. I guess that is why Jay has never seen it on SN platforms. Booting into a crash kernel does not seem to work on this ia64 box unfortunately. I'm about to investigate why, but I thought trying and fixing kexec was a good first step. Thanks for the help! / magnus _______________________________________________ fastboot mailing list [email protected] https://lists.osdl.org/mailman/listinfo/fastboot
