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1d1766d0-9573-4294-dad9-08de80e87724 X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB5832.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2026 10:08:25.3823 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: O+jgtEajIrRzVacbvAs1avxHW8DN1L7vKxmm3hnfHWCOVDxbJ4JQmop6KCjPqIDBYzGKxz01qDfKgwnMwnzyWQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR11MB8345 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "RIP:__early_ioremap" on: commit: 28d319c685b0da78b1823135b60a110d9882259c ("x86/efi: Defer compaction of the EFI memory map") https://git.kernel.org/cgit/linux/kernel/git/ardb/linux.git x86-efi-memmap-cleanup-v2 in testcase: perf-sanity-tests version: with following parameters: perf_compiler: clang group: group-01 config: x86_64-rhel-9.4-bpf compiler: gcc-14 test machine: 16 threads 1 sockets Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz (Coffee Lake-E) with 32G memory (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202603131715.3afc4841-lkp@intel.com [ 3.399684][ T1] Simple Boot Flag at 0x47 set to 0x1 [ 3.404933][ T1] ------------[ cut here ]------------ [ 3.410746][ T1] WARNING: mm/early_ioremap.c:132 at __early_ioremap+0xd8/0x260, CPU#7: swapper/0/1 [ 3.419788][ T1] Modules linked in: [ 3.424741][ T1] CPU: 7 UID: 0 PID: 1 Comm: swapper/0 Tainted: G S 7.0.0-rc3-00009-g28d319c685b0 #1 PREEMPT(full) [ 3.436798][ T1] Tainted: [S]=CPU_OUT_OF_SPEC [ 3.441739][ T1] Hardware name: Intel Corporation Mehlow UP Server Platform/Moss Beach Server, BIOS CNLSE2R1.R00.X188.B13.1903250419 03/25/2019 [ 3.454808][ T1] RIP: 0010:__early_ioremap (mm/early_ioremap.c:132 (discriminator 7)) [ 3.460746][ T1] Code: 60 04 24 83 48 8d 54 24 30 48 89 e9 67 48 0f b9 3a 31 ed e9 3d 01 00 00 4c 8b 7c 24 30 49 8d 0c 2f 48 8d 41 ff 4c 39 f8 73 04 <0f> 0b eb e3 48 85 ed 74 f7 4c 63 e3 48 89 4c 24 08 4a 8d 04 e5 00 All code ======== 0: 60 (bad) 1: 04 24 add $0x24,%al 3: 83 48 8d 54 orl $0x54,-0x73(%rax) 7: 24 30 and $0x30,%al 9: 48 89 e9 mov %rbp,%rcx c: 67 48 0f b9 3a ud1 (%edx),%rdi 11: 31 ed xor %ebp,%ebp 13: e9 3d 01 00 00 jmp 0x155 18: 4c 8b 7c 24 30 mov 0x30(%rsp),%r15 1d: 49 8d 0c 2f lea (%r15,%rbp,1),%rcx 21: 48 8d 41 ff lea -0x1(%rcx),%rax 25: 4c 39 f8 cmp %r15,%rax 28: 73 04 jae 0x2e 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb e3 jmp 0x11 2e: 48 85 ed test %rbp,%rbp 31: 74 f7 je 0x2a 33: 4c 63 e3 movslq %ebx,%r12 36: 48 89 4c 24 08 mov %rcx,0x8(%rsp) 3b: 4a rex.WX 3c: 8d .byte 0x8d 3d: 04 e5 add $0xe5,%al ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb e3 jmp 0xffffffffffffffe7 4: 48 85 ed test %rbp,%rbp 7: 74 f7 je 0x0 9: 4c 63 e3 movslq %ebx,%r12 c: 48 89 4c 24 08 mov %rcx,0x8(%rsp) 11: 4a rex.WX 12: 8d .byte 0x8d 13: 04 e5 add $0xe5,%al ... [ 3.480858][ T1] RSP: 0000:ffff888100c7fa80 EFLAGS: 00010246 [ 3.486746][ T1] RAX: ffffffffffffffff RBX: 0000000000000000 RCX: 0000000000000000 [ 3.494781][ T1] RDX: dffffc0000000000 RSI: ffffffff863e4366 RDI: ffffffff86581f80 [ 3.503469][ T1] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff0b546ca [ 3.511781][ T1] R10: ffffffff85aa3657 R11: 00000000846ccb1e R12: ffffffff86581f80 [ 3.519796][ T1] R13: 1ffff1102018ff52 R14: 8000000000000163 R15: 0000000000000000 [ 3.529469][ T1] FS: 0000000000000000(0000) GS:ffff8887ffebe000(0000) knlGS:0000000000000000 [ 3.538784][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.545468][ T1] CR2: 0000000000000000 CR3: 0000000878672001 CR4: 00000000003706f0 [ 3.553780][ T1] Call Trace: [ 3.556733][ T1] [ 3.559737][ T1] ? __pfx___early_ioremap (mm/early_ioremap.c:109) [ 3.565749][ T1] __efi_memmap_init (drivers/firmware/efi/memmap.c:43) [ 3.570743][ T1] ? __pfx___efi_memmap_init (drivers/firmware/efi/memmap.c:34) [ 3.576469][ T1] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:752) [ 3.580738][ T1] ? trace_preempt_on (include/trace/events/preemptirq.h:53 (discriminator 2) kernel/trace/trace_preemptirq.c:120 (discriminator 2)) [ 3.585750][ T1] ? __pfx_efi_free_boot_services (arch/x86/platform/efi/quirks.c:433) [ 3.592469][ T1] efi_free_boot_services (arch/x86/platform/efi/quirks.c:479 (discriminator 1)) [ 3.597744][ T1] ? __pfx_add_device_randomness (drivers/char/random.c:933) [ 3.603746][ T1] ? __pfx_efi_free_boot_services (arch/x86/platform/efi/quirks.c:433) [ 3.609748][ T1] do_one_initcall (init/main.c:1382) [ 3.614741][ T1] ? __pfx_do_one_initcall (init/main.c:1373) [ 3.619742][ T1] ? parse_one (kernel/params.c:139 (discriminator 10)) [ 3.624740][ T1] ? kasan_save_track (mm/kasan/common.c:70 (discriminator 1) mm/kasan/common.c:79 (discriminator 1)) [ 3.629741][ T1] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:752) [ 3.634743][ T1] ? __kmalloc_noprof (include/trace/events/kmem.h:57 (discriminator 2) mm/slub.c:5264 (discriminator 2) mm/slub.c:5275 (discriminator 2)) [ 3.639741][ T1] ? do_initcalls (init/main.c:1454) [ 3.644742][ T1] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:752) [ 3.649755][ T1] do_initcalls (init/main.c:1443 (discriminator 3) init/main.c:1460 (discriminator 3)) [ 3.653740][ T1] kernel_init_freeable (init/main.c:1696) [ 3.659742][ T1] ? __pfx_kernel_init_freeable (init/main.c:1664) [ 3.665746][ T1] ? _raw_spin_unlock_irq (include/linux/spinlock_api_smp.h:188 (discriminator 3) kernel/locking/spinlock.c:202 (discriminator 3)) [ 3.670748][ T1] ? ret_from_fork (arch/x86/kernel/process.c:157 (discriminator 1)) [ 3.675741][ T1] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:752) [ 3.680741][ T1] ? trace_preempt_on (include/trace/events/preemptirq.h:53 (discriminator 2) kernel/trace/trace_preemptirq.c:120 (discriminator 2)) [ 3.685744][ T1] ? __pfx_kernel_init (init/main.c:1574) [ 3.690743][ T1] kernel_init (init/main.c:1584) [ 3.695738][ T1] ? __pfx_kernel_init (init/main.c:1574) [ 3.700742][ T1] ret_from_fork (arch/x86/kernel/process.c:164) [ 3.705469][ T1] ? __pfx_ret_from_fork (arch/x86/kernel/process.c:153) [ 3.710747][ T1] ? __switch_to (include/linux/thread_info.h:142 (discriminator 2) arch/x86/kernel/process.h:17 (discriminator 2) arch/x86/kernel/process_64.c:676 (discriminator 2)) [ 3.715754][ T1] ? __pfx_kernel_init (init/main.c:1574) [ 3.720744][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:255) [ 3.725750][ T1] [ 3.728732][ T1] irq event stamp: 21465 [ 3.732739][ T1] hardirqs last enabled at (21477): __up_console_sem (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 arch/x86/include/asm/irqflags.h:159 kernel/printk/printk.c:347) [ 3.742785][ T1] hardirqs last disabled at (21488): __up_console_sem (kernel/printk/printk.c:345 (discriminator 3)) [ 3.752468][ T1] softirqs last enabled at (21424): handle_softirqs (kernel/softirq.c:469 (discriminator 2) kernel/softirq.c:650 (discriminator 2)) [ 3.761787][ T1] softirqs last disabled at (21419): __irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723) [ 3.771784][ T1] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260313/202603131715.3afc4841-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki