Messages in this thread | | | Date | Thu, 29 Dec 2005 13:36:17 +0200 | From | Pekka Enberg <> | Subject | Re: SLAB-related panic in 2.6.15-rc7-rt1 on ARM |
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Hi,
On 12/29/05, kus Kusche Klaus <kus@keba.com> wrote: > My sa1100-based system panics while booting with 2.6.15-rc7-rt1 when the > SLAB allocator is configured. Everything is fine with the SLOB > allocator. > > Please cc me, I'm currently not subscribed. > > Memory: 62856KB available (1552K code, 381K data, 80K init) > Unhandled fault: alignment exception (0xc0207003) at 0x0000015b > Internal error: : c0207003 [#1] > Modules linked in: > CPU: 0 > PC is at get_page_from_freelist+0x1c/0x3d8 > LR is at __alloc_pages+0x5c/0x2ac
Unfortunately, I am clueless of arm (and have no idea what alignment exception is) but the problem is probably related to mm/slab.c using alloc_pages_node() whereas mm/slob.c uses get_free_page(). Do you have CONFIG_BUG enabled? If not, please turn it on to see if gfp_zone() catches an invalid GFP flag coming from the slab.
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