After I updated to 67d1128425 I get plenty of this: | VFS: Mounted root (nfs filesystem) readonly. | Freeing unused kernel memory: 148k init | BUG: sleeping function called from invalid context at /home/bigeasy/git/linux-2.6-powerpc/mm/mmap.c:234 | in_atomic():1, irqs_disabled():0 | Call Trace: | [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) | [df189e30] [c0029480] __might_sleep+0xf0/0x100 | [df189e40] [c0070ac0] remove_vma+0x28/0x98 | [df189e50] [c0070c1c] exit_mmap+0xec/0x128 | [df189e80] [c002d2f4] mmput+0x54/0xec | [df189ea0] [c0030b6c] exit_mm+0x10c/0x120 | [df189ed0] [c003288c] do_exit+0x1ac/0x6e8 | [df189f20] [c0032e48] do_group_exit+0x80/0xac | [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c | BUG: scheduling while atomic: udevd/956/0x10000002 | Modules linked in: | Call Trace: | [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) | [df189e30] [c002ac88] __schedule_bug+0x58/0x6c | [df189e40] [c023e6cc] schedule+0xa8/0x4a8 | [df189e90] [c002ad6c] __cond_resched+0x38/0x64 | [df189ea0] [c023ebc8] _cond_resched+0x3c/0x58 | [df189eb0] [c0030e70] put_files_struct+0x90/0xec | [df189ed0] [c00328a8] do_exit+0x1c8/0x6e8 | [df189f20] [c0032e48] do_group_exit+0x80/0xac | [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c
on my 8544. This happans as soon as I hit userspace. A bisect leads to |commit 0ba3418b8b1c85ee1771c63f1dd12041614e56ff |Author: Kumar Gala <[EMAIL PROTECTED]> |Date: Tue Jul 15 16:12:25 2008 -0500 | | powerpc: Introduce local (non-broadcast) forms of tlb invalidates | | Introduced a new set of low level tlb invalidate functions that do not | broadcast invalidates on the bus: | | _tlbil_all - invalidate all | _tlbil_pid - invalidate based on process id (or mm context) | _tlbil_va - invalidate based on virtual address (ea + pid) | | On non-SMP configs _tlbil_all should be functionally equivalent to _tlbia and | _tlbil_va should be functionally equivalent to _tlbie. | | The intent of this change is to handle SMP based invalidates via IPIs instead | of broadcasts as the mechanism scales better for larger number of cores. | | On e500 (fsl-booke mmu) based cores move to using MMUCSR for invalidate alls | and tlbsx/tlbwe for invalidate virtual address. | | Signed-off-by: Kumar Gala <[EMAIL PROTECTED]> | |:040000 040000 1b04e004e4d30e8654f9f4fd6095327bb3211ea0 317b8a3a3fba7b0184f9fbc83e3ee21adfc45b80 M arch A revert of this commit makes BUG() go away and evertything looks fine. I guess this is a config thing on my MPC8544 and my .config is available at [1]. [1] http://download.breakpoint.cc/dot.config.txt Sebastian _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
