Re: [Crash-utility] [PATCH v2] x86_64: Add Linux 5.8+ exception functions to check exception frame

-----Original Message----- 在 2021年04月16日 07:56, HAGIO KAZUHITO(萩尾　一仁) 写道: > Fix for 'bt' command and options on Linux 5.8-rc1 and later kernels > that contain merge commit 076f14be7fc942e112c94c841baec44124275cd0. > The merged patches changed the name of exception functions that > have been used by the crash utility to check the exception frame. > Without the patch, the command and options cannot display it. > > Before: > crash> bt > PID: 8752 TASK: ffff8f80cb244380 CPU: 2 COMMAND: "insmod" > #0 [ffffa3e40187f9f8] machine_kexec at ffffffffab25d267 > #1 [ffffa3e40187fa48] __crash_kexec at ffffffffab38e2ed > #2 [ffffa3e40187fb10] crash_kexec at ffffffffab38f1dd > #3 [ffffa3e40187fb28] oops_end at ffffffffab222cbd > #4 [ffffa3e40187fb48] do_trap at ffffffffab21fea1 > #5 [ffffa3e40187fb90] do_error_trap at ffffffffab21ff75 > #6 [ffffa3e40187fbd0] exc_invalid_op at ffffffffabb76a2c > #7 [ffffa3e40187fbf0] asm_exc_invalid_op at ffffffffabc00a72 > #8 [ffffa3e40187fc78] init_module at ffffffffc042b018 [invalid] > #9 [ffffa3e40187fca0] init_module at ffffffffc042b018 [invalid] > #10 [ffffa3e40187fca8] do_one_initcall at ffffffffab202806 > #11 [ffffa3e40187fd18] do_init_module at ffffffffab3888ba > #12 [ffffa3e40187fd38] load_module at ffffffffab38afde > > After: > crash> bt > PID: 8752 TASK: ffff8f80cb244380 CPU: 2 COMMAND: "insmod" > #0 [ffffa3e40187f9f8] machine_kexec at ffffffffab25d267 > #1 [ffffa3e40187fa48] __crash_kexec at ffffffffab38e2ed > #2 [ffffa3e40187fb10] crash_kexec at ffffffffab38f1dd > #3 [ffffa3e40187fb28] oops_end at ffffffffab222cbd > #4 [ffffa3e40187fb48] do_trap at ffffffffab21fea1 > #5 [ffffa3e40187fb90] do_error_trap at ffffffffab21ff75 > #6 [ffffa3e40187fbd0] exc_invalid_op at ffffffffabb76a2c > #7 [ffffa3e40187fbf0] asm_exc_invalid_op at ffffffffabc00a72 > [exception RIP: init_module+24] > RIP: ffffffffc042b018 RSP: ffffa3e40187fca8 RFLAGS: 00010246 > RAX: 000000000000001c RBX: 0000000000000000 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: ffff8f80fbd18000 RDI: ffff8f80fbd18000 > RBP: ffffffffc042b000 R8: 000000000000029d R9: 000000000000002c > R10: 0000000000000000 R11: ffffa3e40187fb58 R12: ffffffffc042d018 > R13: ffffa3e40187fdf0 R14: ffffffffc042d000 R15: ffffa3e40187fe90 > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 > #8 [ffffa3e40187fca0] init_module at ffffffffc042b018 [invalid] > #9 [ffffa3e40187fca8] do_one_initcall at ffffffffab202806 > #10 [ffffa3e40187fd18] do_init_module at ffffffffab3888ba > #11 [ffffa3e40187fd38] load_module at ffffffffab38afde > > Signed-off-by: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; > --- > v1 -> v2 > - removed "xen_" prefix from "xen_asm_exc_debug" > Thank you for the update. Acked-by: Lianbo Jiang <lijiang(a)redhat.com&gt;