Hi Steven, > Are you sure it was applied correctly?
Please ignore the build warnings / errors it was due to apply patch was not successful. > Perhaps check out the branch I > have and let me know if you get the same errors. > > git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git trace/core I have tested the linux-trace.git trace/core and run selftests ftrace the reported kernel panic [1] & [2] has been fixed but found "general protection fault" at kernel/trace/trace_events.c:2439. [1] https://lore.kernel.org/all/CA+G9fYt6pY+tMZEOg=soeywqoe19fgp3ur15sgowkdk+_x8...@mail.gmail.com/ [2] https://lore.kernel.org/linux-trace-kernel/20231028164650.4f5ea...@rorschach.local.home/ Reported-by: Linux Kernel Functional Testing <l...@linaro.org> Test log: ========== kselftest: Running tests in ftrace TAP version 13 1..1 # timeout set to 0 # selftests: ftrace: ftracetest-ktap ... # ok 46 Test creation and deletion of trace instances while setting an event [ 332.783872] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6bcb: 0000 [#1] PREEMPT SMP PTI [ 332.794585] CPU: 1 PID: 5165 Comm: ls Not tainted 6.6.0-rc4 #1 [ 332.800429] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021 [ 332.807820] RIP: 0010:event_callback (kernel/trace/trace_events.c:2439) [ 332.812353] Code: f6 48 c7 c6 09 78 6b a0 41 55 49 89 cd 41 54 49 89 d4 53 48 8b 02 48 89 fb 4c 8b 78 10 e8 10 8b 19 01 85 c0 0f 84 d2 00 00 00 <41> 8b 47 60 a8 08 0f 85 9c 00 00 00 49 8b 47 10 48 83 78 18 00 74 All code ======== 0: f6 48 c7 c6 testb $0xc6,-0x39(%rax) 4: 09 78 6b or %edi,0x6b(%rax) 7: a0 41 55 49 89 cd 41 movabs 0x495441cd89495541,%al e: 54 49 10: 89 d4 mov %edx,%esp 12: 53 push %rbx 13: 48 8b 02 mov (%rdx),%rax 16: 48 89 fb mov %rdi,%rbx 19: 4c 8b 78 10 mov 0x10(%rax),%r15 1d: e8 10 8b 19 01 callq 0x1198b32 22: 85 c0 test %eax,%eax 24: 0f 84 d2 00 00 00 je 0xfc 2a:* 41 8b 47 60 mov 0x60(%r15),%eax <-- trapping instruction 2e: a8 08 test $0x8,%al 30: 0f 85 9c 00 00 00 jne 0xd2 36: 49 8b 47 10 mov 0x10(%r15),%rax 3a: 48 83 78 18 00 cmpq $0x0,0x18(%rax) 3f: 74 .byte 0x74 Code starting with the faulting instruction =========================================== 0: 41 8b 47 60 mov 0x60(%r15),%eax 4: a8 08 test $0x8,%al 6: 0f 85 9c 00 00 00 jne 0xa8 c: 49 8b 47 10 mov 0x10(%r15),%rax 10: 48 83 78 18 00 cmpq $0x0,0x18(%rax) 15: 74 .byte 0x74 [ 332.831089] RSP: 0018:ffffba5700967b50 EFLAGS: 00010202 [ 332.836315] RAX: 0000000000000001 RBX: ffffffffa06fb5d7 RCX: ffffba5700967bc8 [ 332.843439] RDX: 0000000000000069 RSI: ffffffffa06b7809 RDI: ffffffffa06fb5d7 [ 332.850563] RBP: ffffba5700967b78 R08: ffff8dbe12250134 R09: 0000000000000000 [ 332.857722] R10: ffff8dbe122500e0 R11: ffff8dbe0d8f8fc8 R12: ffffba5700967bd0 [ 332.864846] R13: ffffba5700967bc8 R14: ffffba5700967bc6 R15: 6b6b6b6b6b6b6b6b [ 332.871971] FS: 00007fc5a5062d00(0000) GS:ffff8dc167a80000(0000) knlGS:0000000000000000 [ 332.880057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 332.885801] CR2: 00007f7f8dc50a1c CR3: 0000000113c84003 CR4: 00000000003706e0 [ 332.892928] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 332.900058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 332.907183] Call Trace: [ 332.909658] <TASK> [ 332.911760] ? show_regs (arch/x86/kernel/dumpstack.c:479) [ 332.915166] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 332.918486] ? exc_general_protection (arch/x86/kernel/traps.c:697 arch/x86/kernel/traps.c:642) [ 332.923191] ? asm_exc_general_protection (arch/x86/include/asm/idtentry.h:564) [ 332.928073] ? event_callback (kernel/trace/trace_events.c:2439) [ 332.931996] dcache_dir_open_wrapper (fs/tracefs/event_inode.c:745) [ 332.936636] ? __pfx_dcache_dir_open_wrapper (fs/tracefs/event_inode.c:683) [ 332.941772] do_dentry_open (fs/open.c:929) [ 332.945646] vfs_open (fs/open.c:1064) [ 332.948800] path_openat (fs/namei.c:3639 fs/namei.c:3796) [ 332.952465] ? ___slab_alloc (mm/slub.c:810 mm/slub.c:3265) [ 332.956384] ? nfs_ctx_key_to_expire (fs/nfs/write.c:1281) [ 332.960917] ? trace_preempt_on (kernel/trace/trace_preemptirq.c:105) [ 332.964929] do_filp_open (fs/namei.c:3823) [ 332.968511] do_sys_openat2 (fs/open.c:1422) [ 332.972173] __x64_sys_openat (fs/open.c:1448) [ 332.976014] do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [ 332.979601] ? trace_hardirqs_on_prepare (kernel/trace/trace_preemptirq.c:47 (discriminator 16) kernel/trace/trace_preemptirq.c:42 (discriminator 16)) [ 332.984436] ? syscall_exit_to_user_mode (kernel/entry/common.c:299) [ 332.989219] ? do_syscall_64 (arch/x86/entry/common.c:87) [ 332.992964] ? do_syscall_64 (arch/x86/entry/common.c:87) [ 332.996709] ? do_syscall_64 (arch/x86/entry/common.c:87) [ 333.000460] ? do_syscall_64 (arch/x86/entry/common.c:87) [ 333.004204] ? do_syscall_64 (arch/x86/entry/common.c:87) [ 333.007948] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120) [ 333.012994] RIP: 0033:0x7fc5a51fadf1 [ 333.016600] Code: 44 24 18 31 c0 41 83 e2 40 75 3e 89 f0 25 00 00 41 00 3d 00 00 41 00 74 30 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 3f 48 8b 54 24 18 64 48 2b 14 25 28 00 00 00 All code ======== 0: 44 24 18 rex.R and $0x18,%al 3: 31 c0 xor %eax,%eax 5: 41 83 e2 40 and $0x40,%r10d 9: 75 3e jne 0x49 b: 89 f0 mov %esi,%eax d: 25 00 00 41 00 and $0x410000,%eax 12: 3d 00 00 41 00 cmp $0x410000,%eax 17: 74 30 je 0x49 19: 89 f2 mov %esi,%edx 1b: b8 01 01 00 00 mov $0x101,%eax 20: 48 89 fe mov %rdi,%rsi 23: bf 9c ff ff ff mov $0xffffff9c,%edi 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 3f ja 0x71 32: 48 8b 54 24 18 mov 0x18(%rsp),%rdx 37: 64 48 2b 14 25 28 00 sub %fs:0x28,%rdx 3e: 00 00 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 3f ja 0x47 8: 48 8b 54 24 18 mov 0x18(%rsp),%rdx d: 64 48 2b 14 25 28 00 sub %fs:0x28,%rdx 14: 00 00 [ 333.035361] RSP: 002b:00007ffebef93680 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 333.042919] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc5a51fadf1 [ 333.050042] RDX: 0000000000090800 RSI: 0000562c92f2cc20 RDI: 00000000ffffff9c [ 333.057166] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000562c92f2cc90 [ 333.064290] R10: 0000000000000000 R11: 0000000000000287 R12: 00007fc5a5062b98 [ 333.071415] R13: 00007ffebef93ad0 R14: 0000562c92f2cc20 R15: 0000562c9122ffc8 [ 333.078541] </TASK> [ 333.080733] Modules linked in: x86_pkg_temp_thermal fuse configfs ip_tables x_tables [last unloaded: trace_printk] [ 333.091109] ---[ end trace 0000000000000000 ]--- [ 333.095757] RIP: 0010:event_callback (kernel/trace/trace_events.c:2439) [ 333.100295] Code: f6 48 c7 c6 09 78 6b a0 41 55 49 89 cd 41 54 49 89 d4 53 48 8b 02 48 89 fb 4c 8b 78 10 e8 10 8b 19 01 85 c0 0f 84 d2 00 00 00 <41> 8b 47 60 a8 08 0f 85 9c 00 00 00 49 8b 47 10 48 83 78 18 00 74 All code ======== 0: f6 48 c7 c6 testb $0xc6,-0x39(%rax) 4: 09 78 6b or %edi,0x6b(%rax) 7: a0 41 55 49 89 cd 41 movabs 0x495441cd89495541,%al e: 54 49 10: 89 d4 mov %edx,%esp 12: 53 push %rbx 13: 48 8b 02 mov (%rdx),%rax 16: 48 89 fb mov %rdi,%rbx 19: 4c 8b 78 10 mov 0x10(%rax),%r15 1d: e8 10 8b 19 01 callq 0x1198b32 22: 85 c0 test %eax,%eax 24: 0f 84 d2 00 00 00 je 0xfc 2a:* 41 8b 47 60 mov 0x60(%r15),%eax <-- trapping instruction 2e: a8 08 test $0x8,%al 30: 0f 85 9c 00 00 00 jne 0xd2 36: 49 8b 47 10 mov 0x10(%r15),%rax 3a: 48 83 78 18 00 cmpq $0x0,0x18(%rax) 3f: 74 .byte 0x74 Code starting with the faulting instruction =========================================== 0: 41 8b 47 60 mov 0x60(%r15),%eax 4: a8 08 test $0x8,%al 6: 0f 85 9c 00 00 00 jne 0xa8 c: 49 8b 47 10 mov 0x10(%r15),%rax 10: 48 83 78 18 00 cmpq $0x0,0x18(%rax) 15: 74 .byte 0x74 [ 333.119040] RSP: 0018:ffffba5700967b50 EFLAGS: 00010202 [ 333.124290] RAX: 0000000000000001 RBX: ffffffffa06fb5d7 RCX: ffffba5700967bc8 [ 333.131451] RDX: 0000000000000069 RSI: ffffffffa06b7809 RDI: ffffffffa06fb5d7 [ 333.138623] RBP: ffffba5700967b78 R08: ffff8dbe12250134 R09: 0000000000000000 [ 333.145811] R10: ffff8dbe122500e0 R11: ffff8dbe0d8f8fc8 R12: ffffba5700967bd0 [ 333.152969] R13: ffffba5700967bc8 R14: ffffba5700967bc6 R15: 6b6b6b6b6b6b6b6b [ 333.160127] FS: 00007fc5a5062d00(0000) GS:ffff8dc167a80000(0000) knlGS:0000000000000000 [ 333.168215] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 333.173961] CR2: 00007f7f8dc50a1c CR3: 0000000113c84003 CR4: 00000000003706e0 [ 333.181092] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 333.188251] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 # ok 47 Test creation and deletion of trace instances Log link: - https://lkft.validation.linaro.org/scheduler/job/6983932#L1655 - https://storage.tuxsuite.com/public/linaro/naresh/builds/2XT84xYJIMmKApmqOOtKhnLdCyz/tuxmake_reproducer.sh metadata: git_ref: master git_repo: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git git_ref: trace/core kernel-config: https://storage.tuxsuite.com/public/linaro/naresh/builds/2XT84xYJIMmKApmqOOtKhnLdCyz/config artifact-location: https://storage.tuxsuite.com/public/linaro/naresh/builds/2XT84xYJIMmKApmqOOtKhnLdCyz/ toolchain: gcc-13 -- Linaro LKFT https://lkft.linaro.org > -- Steve
