Hi all,
[I am just guessing at the userns tree.]
My qemu boot test of a powerpc pseries_le_defconfig kernel produced
this warning:
SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
ftrace: allocating 33453 entries in 13 pages
ftrace: allocated 13 pages with 3 groups
trace event string verifier disabled
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/sched/core.c:9469 sched_init+0x45c/0x4f4
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 5.16.0-rc6 #2
NIP: c000000002027c98 LR: c000000002027c94 CTR: 0000000000000000
REGS: c00000000278bb80 TRAP: 0700 Not tainted (5.16.0-rc6)
MSR: 8000000002021033 <SF,VEC,ME,IR,DR,RI,LE> CR: 84000220 XER: 00000000
CFAR: c00000000016c1fc IRQMASK: 1
GPR00: c000000002027c94 c00000000278be20 c00000000278d300 0000000000000001
GPR04: c000000000f88788 c000000002865d98 c000000007070680 0000000000000001
GPR08: 000000007dae0000 c000000007070630 0000000000000000 0000000000000001
GPR12: 0000000000000000 c000000002970000 0000000000000000 0000000000000000
GPR16: 0000000002bf00d0 c0000000027c1f38 c00000000017e510 c000000002867f00
GPR20: c0000000025306b8 c00000000017b520 c00000000017b200 c0000000028682b8
GPR24: 0000000000000400 0000000000000000 c0000000027c2470 c0000000027b3a00
GPR28: c0000000021af900 0000000000000800 0000000000000000 c00000007fc8f900
NIP [c000000002027c98] sched_init+0x45c/0x4f4
LR [c000000002027c94] sched_init+0x458/0x4f4
Call Trace:
[c00000000278be20] [c000000002027c94] sched_init+0x458/0x4f4 (unreliable)
[c00000000278bed0] [c000000002004200] start_kernel+0x53c/0x8cc
[c00000000278bf90] [c00000000000d39c] start_here_common+0x1c/0x600
Instruction dump:
90ea0188 f92a0180 3d22fffb 39291890 39490050 7d005028 31080001 7d00512d
40c2fff4 e86d0908 4a144499 60000000 <0b030000> a08d0008 e86d0908 4bfff849
---[ end trace 0000000000000000 ]---
Exposed by commit
40966e316f86 ("kthread: Ensure struct kthread is present for all kthreads")
--
Cheers,
Stephen Rothwell
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