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<202405271029.6d2f9c4c-lkp@intel.com> In-Reply-To: <202405271029.6d2f9c4c-lkp@intel.com> From: Suren Baghdasaryan Date: Sat, 1 Jun 2024 16:42:03 -0700 Message-ID: Subject: Re: [linus:master] [mm] cc92eba1c8: WARNING:at_kernel/rcu/tree_plugin.h:#__rcu_read_unlock To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Vlastimil Babka , Kees Cook , Alexander Viro , Alex Gaynor , Alice Ryhl , Andreas Hindborg , Benno Lossin , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Boqun Feng , Christoph Lameter , Dennis Zhou , Gary Guo , Kent Overstreet , Miguel Ojeda , Pasha Tatashin , Peter Zijlstra , Tejun Heo , Wedson Almeida Filho , linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: E991C4000A X-Stat-Signature: yr6enaysmizb79chzteqkfmjkho6zq6d X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1717285335-501307 X-HE-Meta: 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 Nrwysi8T 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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: On Sun, May 26, 2024 at 7:57=E2=80=AFPM kernel test robot wrote: > > > > Hello, > > kernel test robot noticed "WARNING:at_kernel/rcu/tree_plugin.h:#__rcu_rea= d_unlock" on: > > commit: cc92eba1c88b1f74e0f044df2738f4e4b22f1e4e ("mm: fix non-compound m= ulti-order memory accounting in __free_pages") > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > [test failed on linus/master 6d69b6c12fce479fde7bc06f686212451688a10= 2] > [test failed on linux-next/master 3689b0ef08b70e4e03b82ebd37730a03a672853= a] > > in testcase: boot > > compiler: clang-18 > test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 1= 6G > > (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 vers= ion of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-lkp/202405271029.6d2f9c4c-lkp@intel.= com Fix is posted at https://lore.kernel.org/all/20240601233840.617458-1-surenb@google.com/ > > > [ 2.504179][ C0] ------------[ cut here ]------------ > [ 2.506222][ C0] WARNING: CPU: 0 PID: 1 at kernel/rcu/tree_plugin.h:431 _= _rcu_read_unlock (kernel/rcu/tree_plugin.h:431) > [ 2.508117][ C0] Modules linked in: > [ 2.509538][ C0] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc= 4-00080-gcc92eba1c88b #1 1899fb0438e1349d8761ad4016a94aaeaa8a37df > [ 2.512111][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 19= 96), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 > [ 2.518194][ C0] RIP: 0010:__rcu_read_unlock (kernel/rcu/tree_plugin.h:43= 1) > [ 2.520109][ C0] Code: 00 00 41 83 3e 00 75 26 43 0f b6 04 3c 84 c0 75 5f= 8b 03 3d 00 00 00 40 73 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc= <0f> 0b eb ec e8 8d 00 00 00 eb d3 89 d9 80 e1 07 80 c1 03 38 c1 7c > All code > =3D=3D=3D=3D=3D=3D=3D=3D > 0: 00 00 add %al,(%rax) > 2: 41 83 3e 00 cmpl $0x0,(%r14) > 6: 75 26 jne 0x2e > 8: 43 0f b6 04 3c movzbl (%r12,%r15,1),%eax > d: 84 c0 test %al,%al > f: 75 5f jne 0x70 > 11: 8b 03 mov (%rbx),%eax > 13: 3d 00 00 00 40 cmp $0x40000000,%eax > 18: 73 10 jae 0x2a > 1a: 5b pop %rbx > 1b: 41 5c pop %r12 > 1d: 41 5d pop %r13 > 1f: 41 5e pop %r14 > 21: 41 5f pop %r15 > 23: 5d pop %rbp > 24: c3 ret > 25: cc int3 > 26: cc int3 > 27: cc int3 > 28: cc int3 > 29: cc int3 > 2a:* 0f 0b ud2 <-- trapping instruction > 2c: eb ec jmp 0x1a > 2e: e8 8d 00 00 00 call 0xc0 > 33: eb d3 jmp 0x8 > 35: 89 d9 mov %ebx,%ecx > 37: 80 e1 07 and $0x7,%cl > 3a: 80 c1 03 add $0x3,%cl > 3d: 38 c1 cmp %al,%cl > 3f: 7c .byte 0x7c > > Code starting with the faulting instruction > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > 0: 0f 0b ud2 > 2: eb ec jmp 0xfffffffffffffff0 > 4: e8 8d 00 00 00 call 0x96 > 9: eb d3 jmp 0xffffffffffffffde > b: 89 d9 mov %ebx,%ecx > d: 80 e1 07 and $0x7,%cl > 10: 80 c1 03 add $0x3,%cl > 13: 38 c1 cmp %al,%cl > 15: 7c .byte 0x7c > [ 2.524112][ C0] RSP: 0000:ffff8883ae809db8 EFLAGS: 00010286 > [ 2.526188][ C0] RAX: 00000000ffffffff RBX: ffff888100ac04ac RCX: d= ffffc0000000000 > [ 2.528109][ C0] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: f= fff888100ac0040 > [ 2.530810][ C0] RBP: 00000000ffffffff R08: ffffffff878bc007 R09: 1= ffffffff0f17800 > [ 2.532116][ C0] R10: dffffc0000000000 R11: fffffbfff0f17801 R12: 1= ffff11020158095 > [ 2.534888][ C0] R13: dffffc0000000000 R14: ffffea0004037400 R15: d= ffffc0000000000 > [ 2.536108][ C0] FS: 0000000000000000(0000) GS:ffff8883ae800000(00= 00) knlGS:0000000000000000 > [ 2.539082][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2.540110][ C0] CR2: ffff88843ffff000 CR3: 00000000056ce000 CR4: 0= 0000000000406f0 > [ 2.542812][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0= 000000000000000 > [ 2.544109][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0= 000000000000400 > [ 2.546833][ C0] Call Trace: > [ 2.548013][ C0] > [ 2.548772][ C0] ? __warn (kernel/panic.c:240 kernel/panic.c:694) > [ 2.550219][ C0] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:431) > [ 2.551982][ C0] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:431) > [ 2.553266][ C0] ? report_bug (lib/bug.c:?) > [ 2.555068][ C0] ? handle_bug (arch/x86/kernel/traps.c:239) > [ 2.556133][ C0] ? exc_invalid_op (arch/x86/kernel/traps.c:260) > [ 2.557753][ C0] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:62= 1) > [ 2.559780][ C0] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:431) > [ 2.561383][ C0] page_ext_put (include/linux/rcupdate.h:339 include/linux= /rcupdate.h:814 mm/page_ext.c:537) > [ 2.562887][ C0] __free_pages (include/linux/page_ref.h:210 include/linux= /mm.h:1135 mm/page_alloc.c:4669) > [ 2.564182][ C0] ? __pfx_thread_stack_free_rcu (kernel/fork.c:346) > [ 2.566080][ C0] ? rcu_core (kernel/rcu/tree.c:?) > [ 2.567681][ C0] rcu_core (include/linux/rcupdate.h:339 kernel/rcu/tree.c= :2198 kernel/rcu/tree.c:2471) > [ 2.569661][ C0] __do_softirq (arch/x86/include/asm/jump_label.h:27 inclu= de/linux/jump_label.h:207 include/trace/events/irq.h:142 kernel/softirq.c:5= 55) > [ 2.571612][ C0] ? __irq_exit_rcu (kernel/softirq.c:613 kernel/softirq.c:= 635) > [ 2.573327][ C0] __irq_exit_rcu (kernel/softirq.c:613 kernel/softirq.c:63= 5) > [ 2.574888][ C0] irq_exit_rcu (kernel/softirq.c:647) > [ 2.576112][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c= :1043) > [ 2.578091][ C0] > [ 2.579130][ C0] > [ 2.580154][ C0] asm_sysvec_apic_timer_interrupt (arch/x86/include/asm/id= tentry.h:702) > [ 2.582143][ C0] RIP: 0010:clear_page_rep (arch/x86/lib/clear_page_64.S:2= 0) > [ 2.583920][ C0] Code: 1f 46 c0 fd e9 26 ff ff ff cc cc cc cc cc cc cc cc= cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 b9 00 02 00 00 31 c0= 48 ab c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 > All code > =3D=3D=3D=3D=3D=3D=3D=3D > 0: 1f (bad) > 1: 46 c0 fd e9 rex.RX sar $0xe9,%bpl > 5: 26 ff es (bad) > 7: ff (bad) > 8: ff cc dec %esp > a: cc int3 > b: cc int3 > c: cc int3 > d: cc int3 > e: cc int3 > f: cc int3 > 10: cc int3 > 11: cc int3 > 12: cc int3 > 13: 90 nop > 14: 90 nop > 15: 90 nop > 16: 90 nop > 17: 90 nop > 18: 90 nop > 19: 90 nop > 1a: 90 nop > 1b: 90 nop > 1c: 90 nop > 1d: 90 nop > 1e: 90 nop > 1f: 90 nop > 20: 90 nop > 21: 90 nop > 22: 90 nop > 23: b9 00 02 00 00 mov $0x200,%ecx > 28: 31 c0 xor %eax,%eax > 2a:* f3 48 ab rep stos %rax,%es:(%rdi) <= -- trapping instruction > 2d: c3 ret > 2e: cc int3 > 2f: cc int3 > 30: cc int3 > 31: cc int3 > 32: 90 nop > 33: 90 nop > 34: 90 nop > 35: 90 nop > 36: 90 nop > 37: 90 nop > 38: 90 nop > 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 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > 0: f3 48 ab rep stos %rax,%es:(%rdi) > 3: c3 ret > 4: cc int3 > 5: cc int3 > 6: cc int3 > 7: cc int3 > 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 > > > The kernel config and materials to reproduce are available at: > https://download.01.org/0day-ci/archive/20240527/202405271029.6d2f9c4c-lk= p@intel.com > > > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki >