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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "kernel_BUG_at_mm/migrate.c" on: commit: 7262f208ca681385d133844be8a58d9b4ca185f7 ("mm/migrate: split source folio if it is on deferred split list") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [test failed on linus/master 32f88d65f01bf6f45476d7edbe675e44fb9e1d58] [test failed on linux-next/master 234cb065ad82915ff8d06ce01e01c3e640b674d2] in testcase: vm-scalability version: vm-scalability-x86_64-6f4ef16-0_20240303 with following parameters: runtime: 300s size: 8T test: anon-cow-seq cpufreq_governor: performance compiler: gcc-13 test machine: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G 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/202406171436.a30c129-oliver.sang@intel.com [ 84.214952][ T6581] ------------[ cut here ]------------ [ 84.219158][ T1289] 781916337 bytes / 1533701 usecs = 497874 KB/s [ 84.219928][ T6581] kernel BUG at mm/migrate.c:2634! [ 84.225273][ T1289] [ 84.226742][ T1289] 781916337 bytes / 1533702 usecs = 497873 KB/s [ 84.231379][ T6581] invalid opcode: 0000 [#1] SMP NOPTI [ 84.236360][ T1289] [ 84.238534][ T6581] CPU: 15 PID: 6581 Comm: usemem Tainted: G S 6.9.0-rc4-00136-g7262f208ca68 #1 [ 84.238538][ T6581] Hardware name: Intel Corporation S2600WFD/S2600WFD, BIOS SE5C620.86B.0D.01.0286.011120190816 01/11/2019 [ 84.246187][ T1289] 781916337 bytes / 1533701 usecs = 497874 KB/s [ 84.249854][ T6581] RIP: 0010:migrate_misplaced_folio (mm/migrate.c:2634 (discriminator 1)) [ 84.252050][ T1289] [ 84.262214][ T6581] Code: a0 b4 1b 83 e8 a8 23 f6 ff 48 89 df e8 a0 3f f5 ff 45 31 e4 8b 44 24 1c 85 c0 75 10 48 8b 44 24 20 48 39 e8 0f 84 27 fe ff ff <0f> 0b 41 89 c5 65 4c 01 2d ba 1d bf 7e 48 8b 3b 48 c1 ef 36 e8 2e All code ======== 0: a0 b4 1b 83 e8 a8 23 movabs 0xfff623a8e8831bb4,%al 7: f6 ff 9: 48 89 df mov %rbx,%rdi c: e8 a0 3f f5 ff callq 0xfffffffffff53fb1 11: 45 31 e4 xor %r12d,%r12d 14: 8b 44 24 1c mov 0x1c(%rsp),%eax 18: 85 c0 test %eax,%eax 1a: 75 10 jne 0x2c 1c: 48 8b 44 24 20 mov 0x20(%rsp),%rax 21: 48 39 e8 cmp %rbp,%rax 24: 0f 84 27 fe ff ff je 0xfffffffffffffe51 2a:* 0f 0b ud2 <-- trapping instruction 2c: 41 89 c5 mov %eax,%r13d 2f: 65 4c 01 2d ba 1d bf add %r13,%gs:0x7ebf1dba(%rip) # 0x7ebf1df1 36: 7e 37: 48 8b 3b mov (%rbx),%rdi 3a: 48 c1 ef 36 shr $0x36,%rdi 3e: e8 .byte 0xe8 3f: 2e cs Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 41 89 c5 mov %eax,%r13d 5: 65 4c 01 2d ba 1d bf add %r13,%gs:0x7ebf1dba(%rip) # 0x7ebf1dc7 c: 7e d: 48 8b 3b mov (%rbx),%rdi 10: 48 c1 ef 36 shr $0x36,%rdi 14: e8 .byte 0xe8 15: 2e cs [ 84.262217][ T6581] RSP: 0000:ffffc9002080fd08 EFLAGS: 00010206 [ 84.262221][ T6581] RAX: ffffea01487467c8 RBX: ffffea0148740000 RCX: 0000000000000000 [ 84.262223][ T6581] RDX: 000000000000027f RSI: 00000000000001ff RDI: 0000000000000001 [ 84.262225][ T6581] RBP: ffffc9002080fd28 R08: 0000000000000000 R09: 0000000000000001 [ 84.262226][ T6581] R10: 000000000000080c R11: 0000000000000000 R12: 0000000000000001 [ 84.274946][ T1289] 781916337 bytes / 1533699 usecs = 497874 KB/s [ 84.279439][ T6581] R13: 00000000000001ff R14: 0000000000000200 R15: ffff88907ffd5000 [ 84.279441][ T6581] FS: 00007f1b11213740(0000) GS:ffff88903f9c0000(0000) knlGS:0000000000000000 [ 84.285537][ T1289] [ 84.287725][ T6581] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.287728][ T6581] CR2: 00007f1b0fe00000 CR3: 0000005f54c9e003 CR4: 00000000007706f0 [ 84.287730][ T6581] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.287731][ T6581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.308684][ T1289] 781916337 bytes / 1533744 usecs = 497860 KB/s [ 84.313094][ T6581] PKRU: 55555554 [ 84.313097][ T6581] Call Trace: [ 84.313100][ T6581] [ 84.320929][ T1289] [ 84.328756][ T6581] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) [ 84.337626][ T1289] 781916337 bytes / 1533702 usecs = 497873 KB/s [ 84.344414][ T6581] ? do_trap (arch/x86/kernel/traps.c:114 arch/x86/kernel/traps.c:155) [ 84.350509][ T1289] [ 84.358331][ T6581] ? migrate_misplaced_folio (mm/migrate.c:2634 (discriminator 1)) [ 84.368158][ T1289] 781916337 bytes / 1533806 usecs = 497840 KB/s [ 84.369304][ T6581] ? do_error_trap (arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:176) [ 84.369306][ T6581] ? migrate_misplaced_folio (mm/migrate.c:2634 (discriminator 1)) [ 84.375745][ T1289] [ 84.383566][ T6581] ? exc_invalid_op (arch/x86/kernel/traps.c:267) [ 84.392383][ T1289] 781916337 bytes / 1537066 usecs = 496784 KB/s [ 84.399219][ T6581] ? migrate_misplaced_folio (mm/migrate.c:2634 (discriminator 1)) [ 84.399222][ T6581] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 84.405314][ T1289] [ 84.408718][ T6581] ? migrate_misplaced_folio (mm/migrate.c:2634 (discriminator 1)) [ 84.408721][ T6581] ? migrate_misplaced_folio (mm/migrate.c:2630 (discriminator 2)) [ 84.412861][ T1289] 781916337 bytes / 1533702 usecs = 497873 KB/s [ 84.414661][ T6581] do_huge_pmd_numa_page (mm/huge_memory.c:1759) [ 84.416855][ T1289] [ 84.420436][ T6581] __handle_mm_fault (mm/memory.c:5429) [ 84.427485][ T1289] 781916337 bytes / 1545381 usecs = 494111 KB/s [ 84.430542][ T6581] handle_mm_fault (mm/memory.c:5608) [ 84.432735][ T1289] [ 84.438220][ T6581] do_user_addr_fault (arch/x86/mm/fault.c:1364) [ 84.445291][ T1289] 781916337 bytes / 1545380 usecs = 494111 KB/s [ 84.448765][ T6581] exc_page_fault (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:72 arch/x86/mm/fault.c:1514 arch/x86/mm/fault.c:1564) [ 84.454252][ T1289] [ 84.456445][ T6581] asm_exc_page_fault (arch/x86/include/asm/idtentry.h:623) [ 84.456448][ T6581] RIP: 0033:0x561f6c00dad4 [ 84.461953][ T1289] 781916337 bytes / 1545382 usecs = 494110 KB/s [ 84.467077][ T6581] Code: 01 00 00 00 e8 0d f9 ff ff 89 c7 e8 6c ff ff ff bf 00 00 00 00 e8 fc f8 ff ff 85 d2 74 08 48 8d 04 f7 48 8b 00 c3 48 8d 04 f7 <48> 89 30 b8 00 00 00 00 c3 41 54 55 53 48 85 ff 0f 84 23 01 00 00 All code ======== 0: 01 00 add %eax,(%rax) 2: 00 00 add %al,(%rax) 4: e8 0d f9 ff ff callq 0xfffffffffffff916 9: 89 c7 mov %eax,%edi b: e8 6c ff ff ff callq 0xffffffffffffff7c 10: bf 00 00 00 00 mov $0x0,%edi 15: e8 fc f8 ff ff callq 0xfffffffffffff916 1a: 85 d2 test %edx,%edx 1c: 74 08 je 0x26 1e: 48 8d 04 f7 lea (%rdi,%rsi,8),%rax 22: 48 8b 00 mov (%rax),%rax 25: c3 retq 26: 48 8d 04 f7 lea (%rdi,%rsi,8),%rax 2a:* 48 89 30 mov %rsi,(%rax) <-- trapping instruction 2d: b8 00 00 00 00 mov $0x0,%eax 32: c3 retq 33: 41 54 push %r12 35: 55 push %rbp 36: 53 push %rbx 37: 48 85 ff test %rdi,%rdi 3a: 0f 84 23 01 00 00 je 0x163 Code starting with the faulting instruction =========================================== 0: 48 89 30 mov %rsi,(%rax) 3: b8 00 00 00 00 mov $0x0,%eax 8: c3 retq 9: 41 54 push %r12 b: 55 push %rbp c: 53 push %rbx d: 48 85 ff test %rdi,%rdi 10: 0f 84 23 01 00 00 je 0x139 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240617/202406171436.a30c129-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki