* "PR" KVM kvm-spt cache bug
@ 2012-03-14 8:07 Benjamin Herrenschmidt
0 siblings, 0 replies; only message in thread
From: Benjamin Herrenschmidt @ 2012-03-14 8:07 UTC (permalink / raw)
To: kvm-ppc
Hi Alex !
Saw that in my log today:
======================================BUG kvm-spt (Not tainted): Objects remaining on kmem_cache_close()
-----------------------------------------------------------------------------
INFO: Slab 0xc000000005a82470 objects1 used=6 fp=0xc00000010f382210 flags=0x4080
Call Trace:
[c0000001445439b0] [c00000000001100c] .show_stack+0x80/0x130 (unreliable)
[c000000144543a60] [c0000000000fe5bc] .slab_err+0x5c/0x68
[c000000144543b60] [c000000000102004] .kmem_cache_destroy+0x144/0x308
[c000000144543c40] [d00000000188a384] .kvmppc_mmu_hpte_sysexit+0x1c/0x28 [kvm]
[c000000144543cc0] [d000000001887ffc] .kvmppc_book3s_exit+0x10/0x2c [kvm]
[c000000144543d30] [c000000000094310] .SyS_delete_module+0x1cc/0x258
[c000000144543e30] [c000000000007720] syscall_exit+0x0/0x38
INFO: Object 0xc00000010f382b58 @offset)04
INFO: Object 0xc00000010f382f78 @offset960
INFO: Object 0xc00000010f383080 @offsetB24
INFO: Object 0xc00000010f383188 @offsetD88
INFO: Object 0xc00000010f383290 @offsetG52
INFO: Object 0xc00000010f3837b8 @offset`72
SLUB kvm-spt: kmem_cache_destroy called for cache that still has objects.
Call Trace:
[c000000144543ab0] [c00000000001100c] .show_stack+0x80/0x130 (unreliable)
[c000000144543b60] [c00000000010215c] .kmem_cache_destroy+0x29c/0x308
[c000000144543c40] [d00000000188a384] .kvmppc_mmu_hpte_sysexit+0x1c/0x28 [kvm]
[c000000144543cc0] [d000000001887ffc] .kvmppc_book3s_exit+0x10/0x2c [kvm]
[c000000144543d30] [c000000000094310] .SyS_delete_module+0x1cc/0x258
[c000000144543e30] [c000000000007720] syscall_exit+0x0/0x38
No more info ... yet. from what I can tell it happened only once.
Cheers,
Ben.
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