Add several experts known from Google. -- begin resent body -- Hi experts, I have a problem when using kexec-tools on freescale powerpc P1014E(ppc32). I have 256MB memory and reserved 78MB for crashkernel. The cmdline for production kernel is, bver=0.0.10 root=/dev/ram rw console=ttyS0,115200 crashkernel=78M I used below command to load crash kernel into memory. /mnt/uspace/abc/kexec -d -l /mnt/uspace/abc/vmlinux.z.img \ --initrd=/mnt/uspace/abc/ramdisk.img.gz \ --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices" Then I used "kexec -e" to execute the crash kernel. The crash kernel works *well* and I can enter busybox after the crash kernel is up. But when I used below command to load crash kernel into memory for panic catching, /mnt/uspace/abc/kexec -d -p /mnt/uspace/abc/vmlinux.z.img \ --initrd=/mnt/uspace/abc/ramdisk.img.gz \ --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices" and tried to trigger panic by "echo c > /proc/sysrq", system hung after "Bye!" was printed to console. I attached the debug output of "kexec -d -l" and "kexec -d -p". Can someone please help here or point me a correct place to post the question? Thanks. BR On Thu, Jun 11, 2015 at 9:22 PM, os user <gnusercn at gmail.com> wrote: > Hi experts, > > I have a problem when using kexec-tools on freescale powerpc P1014E. > > I have 256MB memory and reserved 78MB for crashkernel. > The cmdline for production kernel is, > > bver=0.0.10 root=/dev/ram rw console=ttyS0,115200 crashkernel=78M > > > I used below command to load crash kernel into memory. > /mnt/uspace/abc/kexec -d -l /mnt/uspace/abc/vmlinux.z.img \ > --initrd=/mnt/uspace/abc/ramdisk.img.gz \ > --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 > noirqdistrib reset_devices" > > Then I used "kexec -e" to execute the crash kernel. > The crash kernel works *well* and I can enter busybox after the crash > kernel is up. > > > But when I used below command to load crash kernel into memory for > panic catching, > /mnt/uspace/abc/kexec -d -p /mnt/uspace/abc/vmlinux.z.img \ > --initrd=/mnt/uspace/abc/ramdisk.img.gz \ > --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 > noirqdistrib reset_devices" > > and tried to trigger panic by "echo c > /proc/sysrq", > > system hung after "Bye!" was printed to console. > > I attached the debug output of "kexec -d -l" and "kexec -d -p". > > Can someone please help here or point me a correct place to post the question? > > Thanks. > > BR
