The second frame begins to switch to irq stack of cpu0. crash> rd ffffffc008003f50 2 ffffffc008003f50: ffffffc008003f70 ffffffdfd68125d0 p?.......%...... crash> dis -x ffffffdfd68125d0 0xffffffdfd68125d0 <handle_percpu_devid_fasteoi_ipi+0xb0>: b 0xffffffdfd6812730 <handle_percpu_devid_fasteoi_ipi+0x210> crash> rd ffffffc008003f70 2 ffffffc008003f70: ffffffc008003fb0 ffffffdfd680352c .?......,5...... crash> dis ffffffdfd680352c -x 0xffffffdfd680352c <__handle_domain_irq+0x114>: bl 0xffffffdfd673d204 <__irq_exit_rcu> crash> rd ffffffc008003fb0 2 ffffffc008003fb0: ffffffc008003fe0 ffffffdfd6610380 .?........a..... crash> dis -x ffffffdfd6610380 0xffffffdfd6610380 <gic_handle_irq.30555+0x6c>: cbz w0, 0xffffffdfd6610348 <gic_handle_irq.30555+0x34> crash> rd ffffffc008003fe0 2 ffffffc008003fe0: ffffffdfd8d83e20 ffffffdfd6612624 >......$&a..... crash> dis -x ffffffdfd6612624 0xffffffdfd6612624 <el1_irq+0xe4>: mov sp, x19 crash> rd ffffffdfd8d83e20 2 ffffffdfd8d83e20: ffffffdfd8d83e80 ffffffdfd768c690 .>........h..... crash> dis -x ffffffdfd768c690 0xffffffdfd768c690 <cpuidle_enter_state+0x3a4>: tbnz w19, #31, 0xffffffdfd768c720 <cpuidle_enter_state+0x434> crash> rd ffffffdfd8d83e80 2 ffffffdfd8d83e80: ffffffdfd8d83ef0 ffffffdfd67ab4f4 .>........z..... crash> dis -x ffffffdfd67ab4f4 0xffffffdfd67ab4f4 <do_idle+0x308>: str xzr, [x19, #8] crash> rd ffffffdfd8d83ef0 2 ffffffdfd8d83ef0: ffffffdfd8d83f50 ffffffdfd67ab7e4 P?........z..... crash> dis -x ffffffdfd67ab7e4 0xffffffdfd67ab7e4 <cpu_startup_entry+0x84>: b 0xffffffdfd67ab7e0 <cpu_startup_entry+0x80> It's unreasonable cpu1 is in cpu0's irq context, which is far away from the backtrace showed by "bt -T", so we must avoid this case. crash> bt -T PID: 9089 TASK: ffffff8118012500 CPU: 1 COMMAND: "sh" [ffffffc01b5b3238] vsnprintf at ffffffdfd7075c10 [ffffffc01b5b32b8] sprintf at ffffffdfd707b9e4 [ffffffc01b5b3398] __sprint_symbol at ffffffdfd68abff4 [ffffffc01b5b33c8] symbol_string at ffffffdfd70774ac [ffffffc01b5b33d8] symbol_string at ffffffdfd7077510 [ffffffc01b5b34c8] string at ffffffdfd70767a8 [ffffffc01b5b34d8] vsnprintf at ffffffdfd7075c2c [ffffffc01b5b34e8] vsnprintf at ffffffdfd7075fdc [ffffffc01b5b3518] vscnprintf at ffffffdfd707b8b4 [ffffffc01b5b3558] ktime_get_ts64 at ffffffdfd686a2f8 [ffffffc01b5b3598] data_alloc at ffffffdfd68009b4 [ffffffc01b5b35d8] prb_reserve at ffffffdfd68011b4 [ffffffc01b5b35e8] prb_reserve at ffffffdfd68010a0 [ffffffc01b5b3648] log_store at ffffffdfd67fb024 [ffffffc01b5b3698] number at ffffffdfd7076ea4 [ffffffc01b5b36d8] number at ffffffdfd7076ea4 [ffffffc01b5b3738] vsnprintf at ffffffdfd7075c10 [ffffffc01b5b3778] number at ffffffdfd7076ea4 [ffffffc01b5b37c8] number at ffffffdfd7076ea4 [ffffffc01b5b3828] vsnprintf at ffffffdfd7075c10 [ffffffc01b5b3868] vsnprintf at ffffffdfd7075c2c [ffffffc01b5b3888] number at ffffffdfd7076ea4 [ffffffc01b5b38e8] vsnprintf at ffffffdfd7075c10 [ffffffc01b5b3928] vsnprintf at ffffffdfd7075c2c [ffffffc01b5b3968] aee_nested_printf at ffffffdfd3d05d7c [mrdump] [ffffffc01b5b3a48] mrdump_common_die at ffffffdfd3d05a98 [mrdump] [ffffffc01b5b3ac8] ipanic at ffffffdfd3d06078 [mrdump] [ffffffc01b5b3ae8] __typeid__ZTSFiP14notifier_blockmPvE_global_addr at ffffffdfd7e3c118 [ffffffc01b5b3af0] ipanic.cfi_jt at ffffffdfd3d0ab40 [mrdump] [ffffffc01b5b3b18] atomic_notifier_call_chain at ffffffdfd678236c [ffffffc01b5b3b28] panic at ffffffdfd672aa28 [ffffffc01b5b3bf8] rcu_read_unlock.34874 at ffffffdfd718ddfc [ffffffc01b5b3c58] __handle_sysrq at ffffffdfd718d3c0 [ffffffc01b5b3c68] write_sysrq_trigger at ffffffdfd718ea20 [ffffffc01b5b3cb0] __typeid__ZTSFlP4filePKcmPxE_global_addr at ffffffdfd7e2fa88 [ffffffc01b5b3cc8] proc_reg_write at ffffffdfd6c56f44 [ffffffc01b5b3cd8] file_start_write at ffffffdfd6b3f884 [ffffffc01b5b3d08] vfs_write at ffffffdfd6b403b4 [ffffffc01b5b3da8] ksys_write at ffffffdfd6b40240 [ffffffc01b5b3df8] __arm64_sys_write at ffffffdfd6b401b4 [ffffffc01b5b3e20] __typeid__ZTSFlPK7pt_regsE_global_addr at ffffffdfd7e25240 [ffffffc01b5b3e38] el0_svc_common at ffffffdfd6695980 [ffffffc01b5b3e48] el0_da at ffffffdfd7d43e30 [ffffffc01b5b3e58] el0_svc at ffffffdfd7d43d9c [ffffffc01b5b3e98] el0_sync_handler at ffffffdfd7d43d10 [ffffffc01b5b3ea8] el0_sync at ffffffdfd66128b8 Thanks -- Crash-utility mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxxxxxx https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/ Contribution Guidelines: https://github.com/crash-utility/crash/wiki
