Re: [PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference
kernel test robot <[email protected]>
| Newsgroups | dev.linux.lists.x86-cpuid,dev.linux.lists.oe-lkp,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Hello,
kernel test robot noticed "BUG:using_smp_processor_id()in_preemptible" on:
commit: 038e81b1617c57babe0381d3660234db5e84fb93 ("[PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference")
url: https://github.com/intel-lab-lkp/linux/commits/Ahmed-S-Darwish/x86-cpuid-Remove-transitional-asm-cpuid-h-header/20250815-152019
patch link: https://lore.kernel.org/all/[email protected]/
patch subject: [PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference
in testcase: boot
config: x86_64-randconfig-078-20250816
compiler: gcc-11
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+--------------------------------------------+------------+------------+
| | 2b4adf7848 | 038e81b161 |
+--------------------------------------------+------------+------------+
| 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 <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]
[ 1.202568][ T1] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 1.202670][ T1] caller is init_amd_nbs (arch/x86/kernel/amd_nb.c:319)
[ 1.203596][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc1-00029-g038e81b1617c #1 PREEMPT(full)
[ 1.203603][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 1.203606][ T1] Call Trace:
[ 1.203608][ T1] <TASK>
[ 1.203612][ T1] dump_stack_lvl (lib/dump_stack.c:122 (discriminator 4))
[ 1.203619][ T1] check_preemption_disabled (lib/smp_processor_id.c:51)
[ 1.203627][ T1] ? hpet_late_init (arch/x86/kernel/amd_nb.c:318)
[ 1.203633][ T1] init_amd_nbs (arch/x86/kernel/amd_nb.c:319)
[ 1.203638][ T1] ? hpet_late_init (arch/x86/kernel/amd_nb.c:318)
[ 1.203644][ T1] ? hpet_late_init (arch/x86/kernel/amd_nb.c:318)
[ 1.203648][ T1] do_one_initcall (init/main.c:1269)
[ 1.203655][ T1] ? rdinit_setup (init/main.c:1315)
[ 1.203661][ T1] ? rcu_is_watching (include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[ 1.203670][ T1] do_initcalls (init/main.c:1330 init/main.c:1347)
[ 1.203677][ T1] kernel_init_freeable (init/main.c:1583)
[ 1.203682][ T1] ? rest_init (init/main.c:1461)
[ 1.203689][ T1] kernel_init (init/main.c:1471)
[ 1.203696][ T1] ret_from_fork (arch/x86/kernel/process.c:154)
[ 1.203704][ T1] ? rest_init (init/main.c:1461)
[ 1.203712][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258)
[ 1.203725][ T1] </TASK>
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250818/[email protected]
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki