Hi all,
Today's linux-next boot tests (powerpc pseries_le_defconfig) produced
this warning:
------------[ cut here ]------------
bpf_mem_cache[0]: unexpected object size 16, expect 96
WARNING: CPU: 0 PID: 1 at kernel/bpf/memalloc.c:500 bpf_mem_alloc_init+0x410/0x440
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.0-rc1-04964-g2e08ed1d459f #1
Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf000004 of:SLOF,HEAD pSeries
NIP: c0000000003c0890 LR: c0000000003c088c CTR: 0000000000000000
REGS: c000000004783890 TRAP: 0700 Not tainted (6.6.0-rc1-04964-g2e08ed1d459f)
MSR: 8000000002029033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 24000280 XER: 00000000
CFAR: c00000000014cfa0 IRQMASK: 0
GPR00: c0000000003c088c c000000004783b30 c000000001578c00 0000000000000036
GPR04: 0000000000000000 c000000002667e18 0000000000000001 0000000000000000
GPR08: c000000002667ce0 0000000000000001 0000000000000000 0000000044000280
GPR12: 0000000000000000 c000000002b00000 c000000000011188 0000000000000060
GPR16: c0000000011f9a30 c000000002920f68 c0000000021fac40 c0000000021fac40
GPR20: c000000002a3ed88 c000000002921560 c0000000014867f0 c00000000291ccd8
GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000010
GPR28: c0000000011f9a30 0000000000000000 000000000000000b c00000007fc9ac40
NIP [c0000000003c0890] bpf_mem_alloc_init+0x410/0x440
LR [c0000000003c088c] bpf_mem_alloc_init+0x40c/0x440
Call Trace:
[c000000004783b30] [c0000000003c088c] bpf_mem_alloc_init+0x40c/0x440 (unreliable)
[c000000004783c20] [c00000000203d0c0] bpf_global_ma_init+0x5c/0x9c
[c000000004783c50] [c000000000010bc0] do_one_initcall+0x80/0x300
[c000000004783d20] [c000000002004978] kernel_init_freeable+0x30c/0x3b4
[c000000004783df0] [c0000000000111b0] kernel_init+0x30/0x1a0
[c000000004783e50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x1c
--- interrupt: 0 at 0x0
NIP: 0000000000000000 LR: 0000000000000000 CTR: 0000000000000000
REGS: c000000004783e80 TRAP: 0000 Not tainted (6.6.0-rc1-04964-g2e08ed1d459f)
MSR: 0000000000000000 <> CR: 00000000 XER: 00000000
CFAR: 0000000000000000 IRQMASK: 0
GPR00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR04: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR12: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR28: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
NIP [0000000000000000] 0x0
LR [0000000000000000] 0x0
--- interrupt: 0
Code: 3b000000 4bfffcbc 78650020 3c62ffe7 39200001 3d420130 7cc607b4 7ba40020 386382f0 992a1e24 4bd8c631 60000000 <0fe00000> 4bffff40 ea410080 3860fff4
---[ end trace 0000000000000000 ]---
Presumably related to commit
41a5db8d8161 ("bpf: Add support for non-fix-size percpu mem allocation")
(or other commist in that series) from the bpf-next tree.
--
Cheers,
Stephen Rothwell
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