Hello,
kernel test robot noticed "BUG:spinlock_bad_magic_on_CPU" on:
commit: 86167183a17e03ec77198897975e9fdfbd53cb0b ("igc: fix a log entry using
uninitialized netdev")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linus/master 4a4be1ad3a6efea16c56615f31117590fd881358]
[test failed on linux-next/master 9d99040b1bc8dbf385a8aa535e9efcdf94466e19]
in testcase: boot
compiler: gcc-13
test machine: 20 threads 1 sockets (Commet Lake) with 16G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
we noticed this issue happens on a low rate (10%), but keeps clean on parent.
8e3a90f2e3aa642d 86167183a17e03ec77198897975
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
:100 10% 10:100
dmesg.BUG:spinlock_bad_magic_on_CPU
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.s...@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202406031428.22e2b70a-...@intel.com
[ 7.177394][ T1] BUG: spinlock bad magic on CPU#10, swapper/0/1
[ 7.178391][ T1] lock: 0xffff888133bc3510, .magic: 00000000, .owner:
<none>/-1, .owner_cpu: 0
[ 7.178391][ T1] CPU: 10 PID: 1 Comm: swapper/0 Not tainted
6.9.0-rc6-01560-g86167183a17e #1
[ 7.178391][ T1] Call Trace:
[ 7.178391][ T1] <TASK>
[ 7.178391][ T1] dump_stack_lvl (lib/dump_stack.c:117)
[ 7.178391][ T1] do_raw_spin_lock (kernel/locking/spinlock_debug.c:87
(discriminator 2) kernel/locking/spinlock_debug.c:115 (discriminator 2))
[ 7.178391][ T1] _raw_spin_lock_irqsave (kernel/locking/spinlock.c:163)
[ 7.178391][ T1] igc_ptp_clear_tx_tstamp
(drivers/net/ethernet/intel/igc/igc_ptp.c:578 (discriminator 1))
[ 7.178391][ T1] igc_ptp_set_timestamp_mode
(drivers/net/ethernet/intel/igc/igc_ptp.c:607 (discriminator 2)
drivers/net/ethernet/intel/igc/igc_ptp.c:644 (discriminator 2))
[ 7.178391][ T1] igc_ptp_reset (include/linux/spinlock.h:326
drivers/net/ethernet/intel/igc/igc_ptp.c:1261)
[ 7.178391][ T1] igc_reset (drivers/net/ethernet/intel/igc/igc_main.c:123)
[ 7.178391][ T1] igc_probe (drivers/net/ethernet/intel/igc/igc_main.c:6728
(discriminator 2) drivers/net/ethernet/intel/igc/igc_main.c:177 (discriminator
2) drivers/net/ethernet/intel/igc/igc_main.c:7039 (discriminator 2))
[ 7.178391][ T1] local_pci_probe (drivers/pci/pci-driver.c:324)
[ 7.178391][ T1] pci_call_probe (drivers/pci/pci-driver.c:392 (discriminator
1))
[ 7.178391][ T1] pci_device_probe (drivers/pci/pci-driver.c:452)
[ 7.178391][ T1] ? driver_sysfs_add (drivers/base/dd.c:447)
[ 7.178391][ T1] really_probe (drivers/base/dd.c:578 drivers/base/dd.c:656)
[ 7.178391][ T1] ? __pfx___driver_attach (drivers/base/dd.c:1155)
[ 7.178391][ T1] __driver_probe_device (drivers/base/dd.c:798)
[ 7.178391][ T1] driver_probe_device (drivers/base/dd.c:829)
[ 7.178391][ T1] __driver_attach (drivers/base/dd.c:1215)
[ 7.178391][ T1] bus_for_each_dev (drivers/base/bus.c:368)
[ 7.178391][ T1] bus_add_driver (drivers/base/bus.c:674)
[ 7.178391][ T1] driver_register (drivers/base/driver.c:247)
[ 7.178391][ T1] ? __pfx_igc_init_module
(drivers/net/ethernet/intel/igc/igc_main.c:7534)
[ 7.178391][ T1] do_one_initcall (init/main.c:1245)
[ 7.178391][ T1] do_initcalls (init/main.c:1306 (discriminator 1)
init/main.c:1323 (discriminator 1))
[ 7.178391][ T1] kernel_init_freeable (init/main.c:1559)
[ 7.178391][ T1] ? __pfx_kernel_init (init/main.c:1436)
[ 7.178391][ T1] kernel_init (init/main.c:1446)
[ 7.178391][ T1] ret_from_fork (arch/x86/kernel/process.c:147)
[ 7.178391][ T1] ? __pfx_kernel_init (init/main.c:1436)
[ 7.178391][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
[ 7.178391][ T1] </TASK>
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240603/202406031428.22e2b70a-...@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
