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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello, kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_mm/memory.c" on: commit: c636ba74f021bfe8d72845f9e53ee2b8ea16f5f8 ("[PATCH 2/2] mm: Allocate THP on hugezeropage wp-fault") url: https://github.com/intel-lab-lkp/linux/commits/Dev-Jain/mm-Abstract-THP-allocation/20240830-164300 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/20240830084117.4079805-3-dev.jain@arm.com/ patch subject: [PATCH 2/2] mm: Allocate THP on hugezeropage wp-fault in testcase: trinity version: trinity-i386-abe9de86-1_20230429 with following parameters: runtime: 600s compiler: gcc-12 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (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/202409031602.14479174-lkp@intel.com [ 189.202955][T15284] BUG: sleeping function called from invalid context at mm/memory.c:6690 [ 189.203611][T15284] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 15284, name: trinity-c6 [ 189.204103][T15284] preempt_count: 1, expected: 0 [ 189.204364][T15284] RCU nest depth: 0, expected: 0 [ 189.204630][T15284] 2 locks held by trinity-c6/15284: [189.204909][T15284] #0: ffff888164fc27b0 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/jump_label.h:261 include/linux/jump_label.h:273 include/linux/mmap_lock.h:35 include/linux/mmap_lock.h:164 mm/memory.c:6067 mm/memory.c:6127) [189.205536][T15284] #1: ffff888160945c48 (ptlock_ptr(ptdesc)){+.+.}-{2:2}, at: do_huge_pmd_wp_page (mm/huge_memory.c:1816 mm/huge_memory.c:1838) [ 189.206099][T15284] CPU: 1 UID: 65534 PID: 15284 Comm: trinity-c6 Not tainted 6.11.0-rc4-00551-gc636ba74f021 #1 [ 189.206657][T15284] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 189.207205][T15284] Call Trace: [ 189.207389][T15284] [189.207552][T15284] dump_stack_lvl (lib/dump_stack.c:122) [189.207803][T15284] __might_resched (kernel/sched/core.c:8462) [189.208106][T15284] ? __pfx___might_resched (kernel/sched/core.c:8416) [189.208397][T15284] folio_zero_user (include/linux/kernel.h:73 mm/memory.c:6690 mm/memory.c:6767) [189.208657][T15284] thp_fault_alloc (include/linux/page-flags.h:785 (discriminator 2) mm/huge_memory.c:1156 (discriminator 2)) [189.208914][T15284] do_huge_pmd_wp_page (mm/huge_memory.c:1792 mm/huge_memory.c:1818 mm/huge_memory.c:1838) [189.209197][T15284] ? __lock_release+0x3fe/0x860 [189.209494][T15284] ? __pfx_do_huge_pmd_wp_page (mm/huge_memory.c:1826) [189.209802][T15284] __handle_mm_fault (mm/memory.c:5614 mm/memory.c:5852) [189.210072][T15284] ? mt_find (lib/maple_tree.c:6961) [189.210303][T15284] ? __pfx___handle_mm_fault (mm/memory.c:5771) [189.210595][T15284] ? __pfx_mt_find (lib/maple_tree.c:6927) [189.210875][T15284] handle_mm_fault (mm/memory.c:6042) [189.211134][T15284] ? __pfx_handle_mm_fault (mm/memory.c:5997) [189.211424][T15284] ? down_read_trylock (kernel/locking/rwsem.c:1568) [189.211701][T15284] ? lock_mm_and_find_vma (mm/memory.c:6130) [189.211997][T15284] do_user_addr_fault (arch/x86/mm/fault.c:1391) [189.212283][T15284] exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:87 arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539) [189.212539][T15284] asm_exc_page_fault (arch/x86/include/asm/idtentry.h:623) [189.212811][T15284] RIP: 0010:__put_user_4 (arch/x86/lib/putuser.S:88) [ 189.213091][T15284] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 1f 00 <89> 01 31 c9 0f 1f 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 All code ======== 0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 7: 00 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: f3 0f 1e fa endbr64 1d: 48 89 cb mov %rcx,%rbx 20: 48 c1 fb 3f sar $0x3f,%rbx 24: 48 09 d9 or %rbx,%rcx 27: 0f 1f 00 nopl (%rax) 2a:* 89 01 mov %eax,(%rcx) <-- trapping instruction 2c: 31 c9 xor %ecx,%ecx 2e: 0f 1f 00 nopl (%rax) 31: c3 ret 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: 0f 1f 00 nopl (%rax) 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 89 01 mov %eax,(%rcx) 2: 31 c9 xor %ecx,%ecx 4: 0f 1f 00 nopl (%rax) 7: c3 ret 8: cc int3 9: cc int3 a: cc int3 b: cc int3 c: 0f 1f 00 nopl (%rax) f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 189.214257][T15284] RSP: 0000:ffff88812fc0fd70 EFLAGS: 00010206 [ 189.214726][T15284] RAX: 0000000020080522 RBX: 0000000000000000 RCX: 00000000ff7fffff [ 189.215167][T15284] RDX: 1ffff1102bfd712e RSI: 1ffff11075e09456 RDI: ffff88815feb8970 [ 189.215605][T15284] RBP: 00000000ff7fffff R08: ffff88815feb8978 R09: fffffbfff50eecad [ 189.216059][T15284] R10: ffffffffa877656f R11: 0000000000000000 R12: 1ffff11025f81faf [ 189.216637][T15284] R13: ffff88812fc0fe30 R14: 00000000000000b9 R15: 0000000000000000 [189.217074][T15284] cap_validate_magic (kernel/capability.c:94) [189.217349][T15284] ? __pfx_cap_validate_magic (kernel/capability.c:76) [189.217654][T15284] __do_sys_capset (kernel/capability.c:230) [189.217925][T15284] ? __pfx___do_sys_capset (kernel/capability.c:221) [189.218226][T15284] do_int80_emulation (arch/x86/entry/common.c:165 arch/x86/entry/common.c:253) [189.218497][T15284] asm_int80_emulation (arch/x86/include/asm/idtentry.h:626) [ 189.218871][T15284] RIP: 0023:0xf7f30092 [ 189.219200][T15284] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 f8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 All code ======== 0: 00 00 add %al,(%rax) 2: 00 e9 add %ch,%cl 4: 90 nop 5: ff (bad) 6: ff (bad) 7: ff (bad) 8: ff a3 24 00 00 00 jmp *0x24(%rbx) e: 68 30 00 00 00 push $0x30 13: e9 80 ff ff ff jmp 0xffffffffffffff98 18: ff a3 f8 ff ff ff jmp *-0x8(%rbx) 1e: 66 90 xchg %ax,%ax ... 28: cd 80 int $0x80 2a:* c3 ret <-- trapping instruction 2b: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 32: 8d b6 00 00 00 00 lea 0x0(%rsi),%esi 38: 8b 1c 24 mov (%rsp),%ebx 3b: c3 ret 3c: 8d .byte 0x8d 3d: b4 26 mov $0x26,%ah ... Code starting with the faulting instruction =========================================== 0: c3 ret 1: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 8: 8d b6 00 00 00 00 lea 0x0(%rsi),%esi e: 8b 1c 24 mov (%rsp),%ebx 11: c3 ret 12: 8d .byte 0x8d 13: b4 26 mov $0x26,%ah The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240903/202409031602.14479174-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki