* Lei Wen <adrian.wenl at gmail.com> [2011-05-06 16:33]: > > Is there any existed solution that could make the kdump without the kexec? > For some kind of system hang, always hardware bug, or software deadlock, which > could not trigger the kernel oops, so that the first kernel cannot > load the second kernel > with kexec tool. The only way here is to directly press the reset key. > > We could be assure that the ddr memory would not be corrupted by this > way of reset > (for we don't shutdown the ddr power during the reset). So my question > is that whether > we could take use of bootloader, like the u-boot, to pretend we are > loading the second kernel > after the reset behavior and then perform the kdump process? Did you try sysrq-c? Which platform? Most of them have the concept of a NMI that also can trigger kdump. Regards, Bernhard
