Hello, Testing crash with 2.6.25-rc2-git1 leads to: .............................................................................. crash 4.0-4.13 [ ... snipped ... ] please wait... (patching 33611 gdb minimal_symbol values) crash: invalid structure member offset: tss_struct_ist FILE: x86_64.c LINE: 682 FUNCTION: x86_64_ist_init() [.../crash-4.0.4-13/bin/crash] error trace: 4522bb => 4cc1cb => 4ce2fb => 5029bd 5029bd: OFFSET_verify+159 4ce2fb: x86_64_ist_init+501 4cc1cb: x86_64_init+2903 4522bb: main_loop+115 WARNING: Because this kernel was compiled with gcc version 4.2.3, certain commands or command options may fail unless crash is invoked with the "--readnow" command line option. .............................................................................. . This is probably also the case with less recent kernel versions (cannot confirm as of now). . The vmcore was the one produced by "echo c > /proc/sysrq-trigger" . Advice of using --readnow does not suppress the error. . Using --no_data_debug option allows to go further. Regards, -- solofo -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility