Hi all,
After merging the vfs-brauner tree, today's linux-next build (powerpc
pseries_le_defconfig) failed like this:
[ 2.498347][ T1] Loading compiled-in X.509 certificates
[ 2.514931][ T53] BUG: Kernel NULL pointer dereference at 0x00000038
[ 2.515067][ T53] Faulting instruction address: 0xc0000000011c9e14
[ 2.515629][ T53] Oops: Kernel access of bad area, sig: 11 [#1]
[ 2.515749][ T53] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
[ 2.516160][ T53] Modules linked in:
[ 2.516586][ T53] CPU: 0 PID: 53 Comm: cryptomgr_probe Not tainted 6.8.0-rc3-04019-g26b3eeef9e0f #1
[ 2.516849][ T53] Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf000004 of:SLOF,HEAD pSeries
[ 2.517084][ T53] NIP: c0000000011c9e14 LR: c0000000001dd7b4 CTR: c00000000029c820
[ 2.517163][ T53] REGS: c00000000786fa00 TRAP: 0380 Not tainted (6.8.0-rc3-04019-g26b3eeef9e0f)
[ 2.517288][ T53] MSR: 8000000002009033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 28004208 XER: 20000000
[ 2.517612][ T53] CFAR: c0000000001dd7b0 IRQMASK: 1
[ 2.517612][ T53] GPR00: c0000000001dd7b4 c00000000786fca0 c0000000015c9900 0000000000000038
[ 2.517612][ T53] GPR04: 0000000000000003 0000000000000001 0000000000000051 fffffffffffe0000
[ 2.517612][ T53] GPR08: 0000000000000000 0000000000000001 c0000000079554c8 0000000000002000
[ 2.517612][ T53] GPR12: c00000000029c820 c000000002b60000 c00000000018fa0c c00000000404cec0
[ 2.517612][ T53] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2.517612][ T53] GPR20: 0000000000000000 0000000000000000 c000000006e0e580 0000000000000000
[ 2.517612][ T53] GPR24: c000000002951080 c000000002a0e848 0000000000000000 0000000000000051
[ 2.517612][ T53] GPR28: c0000000048cc100 0000000000000038 0000000000000001 0000000000000001
[ 2.518535][ T53] NIP [c0000000011c9e14] _raw_spin_lock_irqsave+0x34/0xc0
[ 2.519499][ T53] LR [c0000000001dd7b4] __wake_up+0x44/0xa4
[ 2.519797][ T53] Call Trace:
[ 2.519944][ T53] [c00000000786fca0] [0000000000002000] 0x2000 (unreliable)
[ 2.520411][ T53] [c00000000786fcd0] [c00000000786fd10] 0xc00000000786fd10
[ 2.520523][ T53] [c00000000786fd20] [c00000000016d240] pidfd_wake_up_poll+0x50/0x64
[ 2.520597][ T53] [c00000000786fd40] [c000000000189460] __change_pid+0x84/0x16c
[ 2.520669][ T53] [c00000000786fd70] [c000000000158dec] release_task+0x338/0x788
[ 2.520740][ T53] [c00000000786fe10] [c00000000015aa9c] do_exit+0x6d8/0xd38
[ 2.520812][ T53] [c00000000786fef0] [c00000000018f9c4] kthread_exit+0x3c/0x40
[ 2.521033][ T53] [c00000000786ff20] [c00000000023f2bc] __module_put_and_kthread_exit+0x38/0x3c
[ 2.521120][ T53] [c00000000786ff50] [c00000000095cdc4] cryptomgr_probe+0xc8/0xcc
[ 2.521204][ T53] [c00000000786ff90] [c00000000018fb3c] kthread+0x138/0x140
[ 2.521283][ T53] [c00000000786ffe0] [c00000000000ded8] start_kernel_thread+0x14/0x18
[ 2.521512][ T53] Code: 3842fb20 7c0802a6 60000000 fbe1fff8 f821ffd1 8bed0932 63e90001 992d0932 a12d0008 3ce0fffe 5529083c 61290001 <7d001829> 7d063879 40c20018 7d063838
[ 2.522412][ T53] ---[ end trace 0000000000000000 ]---
[ 2.545459][ T53] pstore: backend (nvram) writing error (-1)
[ 2.545630][ T53]
[ 2.545995][ T53] note: cryptomgr_probe[53] exited with irqs disabled
[ 2.546329][ T53] Fixing recursive fault but reboot is needed!
[ 2.560506][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: fcc64ee53479274966d371cbdc225bca2574aaaf'
Bisected to commit
7a1cac7d58e3 ("pidfd: convert to wake_up_poll()")
I have reverted that commit for today.
--
Cheers,
Stephen Rothwell
Attachment:
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Description: OpenPGP digital signature
