From: kernel test robot <oliver.sang@intel.com>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
Nicholas Piggin <npiggin@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
"Paul E. McKenney" <paulmck@kernel.org>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Boqun Feng <boqun.feng@gmail.com>,
Alan Stern <stern@rowland.harvard.edu>,
John Stultz <jstultz@google.com>,
Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Frederic Weisbecker <frederic@kernel.org>,
"Joel Fernandes" <joel@joelfernandes.org>,
Josh Triplett <josh@joshtriplett.org>,
Uladzislau Rezki <urezki@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Zqiang <qiang.zhang1211@gmail.com>,
Ingo Molnar <mingo@redhat.com>, Waiman Long <longman@redhat.com>,
"Mark Rutland" <mark.rutland@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Vlastimil Babka <vbabka@suse.cz>,
Mateusz Guzik <mjguzik@gmail.com>,
"Jonas Oberhauser" <jonas.oberhauser@huaweicloud.com>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-mm@kvack.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
<maged.michael@gmail.com>, <rcu@vger.kernel.org>,
<lkmm@lists.linux.dev>, <oliver.sang@intel.com>
Subject: Re: [RFC PATCH v2 4/4] sched+mm: Use hazard pointers to track lazy active mm existence
Date: Mon, 7 Oct 2024 22:50:23 +0800 [thread overview]
Message-ID: <202410072229.18756716-oliver.sang@intel.com> (raw)
In-Reply-To: <20241004182734.1761555-5-mathieu.desnoyers@efficios.com>
Hello,
kernel test robot noticed "BUG:using_smp_processor_id()in_preemptible" on:
commit: efef4da3b19cadf4beb45079a05643a77821de79 ("[RFC PATCH v2 4/4] sched+mm: Use hazard pointers to track lazy active mm existence")
url: https://github.com/intel-lab-lkp/linux/commits/Mathieu-Desnoyers/compiler-h-Introduce-ptr_eq-to-preserve-address-dependency/20241005-023027
base: https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git next
patch link: https://lore.kernel.org/all/20241004182734.1761555-5-mathieu.desnoyers@efficios.com/
patch subject: [RFC PATCH v2 4/4] sched+mm: Use hazard pointers to track lazy active mm existence
in testcase: boot
compiler: gcc-12
test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+--------------------------------------------+------------+------------+
| | 75b478bf10 | efef4da3b1 |
+--------------------------------------------+------------+------------+
| BUG:using_smp_processor_id()in_preemptible | 0 | 12 |
+--------------------------------------------+------------+------------+
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 <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202410072229.18756716-oliver.sang@intel.com
[ 6.336856][ T48] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u10:1/48
[ 6.338102][ T48] caller is debug_smp_processor_id (lib/smp_processor_id.c:61)
[ 6.338809][ T48] CPU: 0 UID: 0 PID: 48 Comm: kworker/u10:1 Not tainted 6.12.0-rc1-00004-gefef4da3b19c #5
[ 6.339929][ T48] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 6.341119][ T48] Call Trace:
[ 6.341504][ T48] dump_stack_lvl (lib/dump_stack.c:123)
[ 6.342057][ T48] dump_stack (lib/dump_stack.c:130)
[ 6.342065][ T48] check_preemption_disabled (arch/x86/include/asm/preempt.h:84 lib/smp_processor_id.c:53)
[ 6.342065][ T48] debug_smp_processor_id (lib/smp_processor_id.c:61)
[ 6.342065][ T48] exec_mmap (include/linux/sched/mm.h:91 fs/exec.c:1017)
[ 6.342065][ T48] ? would_dump (fs/exec.c:1409)
[ 6.342065][ T48] begin_new_exec (fs/exec.c:1280)
[ 6.342065][ T48] ? load_elf_phdrs (fs/binfmt_elf.c:534)
[ 6.342065][ T48] load_elf_binary (fs/binfmt_elf.c:996)
[ 6.342065][ T48] ? get_lock_stats (kernel/locking/lockdep.c:339)
[ 6.342065][ T48] ? search_binary_handler (fs/exec.c:1752)
[ 6.342065][ T48] search_binary_handler (fs/exec.c:1752)
[ 6.342065][ T48] exec_binprm (fs/exec.c:1795)
[ 6.342065][ T48] bprm_execve (fs/exec.c:1846 fs/exec.c:1821)
[ 6.342065][ T48] kernel_execve (fs/exec.c:2012)
[ 6.342065][ T48] call_usermodehelper_exec_async (kernel/umh.c:110)
[ 6.342065][ T48] ? umh_complete (kernel/umh.c:65)
[ 6.342065][ T48] ret_from_fork (arch/x86/kernel/process.c:153)
[ 6.342065][ T48] ? umh_complete (kernel/umh.c:65)
[ 6.342065][ T48] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 6.342065][ T48] entry_INT80_32 (arch/x86/entry/entry_32.S:944)
[ 6.352140][ T1] ppdev: user-space parallel port driver
[ 6.353841][ T1] HSI/SSI char device loaded
[ 6.354238][ T1] e1000: Intel(R) PRO/1000 Network Driver
[ 6.354673][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 6.650009][ T1] ACPI: _SB_.LNKC: Enabled at IRQ 11
[ 6.968868][ T1] e1000 0000:00:03.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
[ 6.969500][ T1] e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
[ 6.970506][ T49] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u10:1/49
[ 6.971191][ T49] caller is debug_smp_processor_id (lib/smp_processor_id.c:61)
[ 6.971650][ T49] CPU: 0 UID: 0 PID: 49 Comm: kworker/u10:1 Not tainted 6.12.0-rc1-00004-gefef4da3b19c #5
[ 6.972365][ T49] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 6.973115][ T49] Call Trace:
[ 6.973356][ T49] dump_stack_lvl (lib/dump_stack.c:123)
[ 6.973686][ T49] dump_stack (lib/dump_stack.c:130)
[ 6.973983][ T49] check_preemption_disabled (arch/x86/include/asm/preempt.h:84 lib/smp_processor_id.c:53)
[ 6.974328][ T49] debug_smp_processor_id (lib/smp_processor_id.c:61)
[ 6.974328][ T49] exec_mmap (include/linux/sched/mm.h:91 fs/exec.c:1017)
[ 6.974328][ T49] ? would_dump (fs/exec.c:1409)
[ 6.974328][ T49] begin_new_exec (fs/exec.c:1280)
[ 6.974328][ T49] ? load_elf_phdrs (fs/binfmt_elf.c:534)
[ 6.974328][ T49] load_elf_binary (fs/binfmt_elf.c:996)
[ 6.974328][ T49] ? get_lock_stats (kernel/locking/lockdep.c:339)
[ 6.974328][ T49] ? search_binary_handler (fs/exec.c:1752)
[ 6.974328][ T49] search_binary_handler (fs/exec.c:1752)
[ 6.974328][ T49] exec_binprm (fs/exec.c:1795)
[ 6.974328][ T49] bprm_execve (fs/exec.c:1846 fs/exec.c:1821)
[ 6.974328][ T49] kernel_execve (fs/exec.c:2012)
[ 6.974328][ T49] call_usermodehelper_exec_async (kernel/umh.c:110)
[ 6.974328][ T49] ? umh_complete (kernel/umh.c:65)
[ 6.974328][ T49] ret_from_fork (arch/x86/kernel/process.c:153)
[ 6.974328][ T49] ? umh_complete (kernel/umh.c:65)
[ 6.974328][ T49] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 6.974328][ T49] entry_INT80_32 (arch/x86/entry/entry_32.S:944)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241007/202410072229.18756716-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2024-10-07 14:50 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-04 18:27 [RFC PATCH v2 0/4] sched+mm: Track lazy active mm existence with hazard pointers Mathieu Desnoyers
2024-10-04 18:27 ` [RFC PATCH v2 1/4] compiler.h: Introduce ptr_eq() to preserve address dependency Mathieu Desnoyers
2024-10-04 18:27 ` [RFC PATCH v2 2/4] Documentation: RCU: Refer to ptr_eq() Mathieu Desnoyers
2024-10-04 21:15 ` Joel Fernandes
2024-10-06 19:52 ` David Laight
2024-10-06 20:39 ` Paul E. McKenney
2024-10-07 11:01 ` Sebastian Andrzej Siewior
2024-10-04 18:27 ` [RFC PATCH v2 3/4] hp: Implement Hazard Pointers Mathieu Desnoyers
2024-10-04 21:25 ` Joel Fernandes
2024-10-05 12:05 ` Mathieu Desnoyers
2024-10-05 11:19 ` Frederic Weisbecker
2024-10-05 11:42 ` Mathieu Desnoyers
2024-10-05 16:04 ` Peter Zijlstra
2024-10-05 16:07 ` Peter Zijlstra
2024-10-05 18:56 ` Mathieu Desnoyers
2024-10-07 10:42 ` Peter Zijlstra
2024-10-07 13:22 ` Mathieu Desnoyers
2024-10-05 18:50 ` Mathieu Desnoyers
2024-10-07 10:40 ` Peter Zijlstra
2024-10-07 14:50 ` Mathieu Desnoyers
2024-10-07 18:18 ` Paul E. McKenney
2024-10-07 19:06 ` Paul E. McKenney
2024-10-07 19:08 ` Mathieu Desnoyers
2024-10-04 18:27 ` [RFC PATCH v2 4/4] sched+mm: Use hazard pointers to track lazy active mm existence Mathieu Desnoyers
2024-10-07 14:50 ` kernel test robot [this message]
2024-10-07 15:05 ` Mathieu Desnoyers
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