Hi Dave, Thanks a lot for creating this list. This is definitely going to help. I got a query right away. This is regarding the EIP displayed in "bt". Have a look at following stack trace. crash> bt PID: 12632 TASK: ee01ea40 CPU: 3 COMMAND: "bash" #0 [d829df20] crash_kexec at c013a4da #1 [d829df28] __handle_sysrq at c0247e71 #2 [d829df54] write_sysrq_trigger at c01916d4 #3 [d829df6c] vfs_write at c015c7ca #4 [d829df90] sys_write at c015c88c #5 [d829dfb8] sysenter_entry at c0102da8 EAX: 00000004 EBX: 00000001 ECX: b7f18000 EDX: 00000002 DS: 007b ESI: 00000002 ES: 007b EDI: b7f18000 SS: 007b ESP: bfc1f334 EBP: bfc1f360 CS: 0073 EIP: ffffe410 ERR: 00000004 EFLAGS: 00000246 Here EIP value is "ffffe410" which is definitely not a user space address. I am getting this value in all the kdump images I have taken. Is it due to the fact because we are entring using sysenter. If yes then how to get right EIP value. Thanks Vivek