On Thu, Apr 09 2009, Jens Axboe wrote: > On Thu, Apr 09 2009, Sachin Sant wrote: > > I had Next 09 booted on a powerpc box and was compiling a kernel. > > That's when i ran into this oops. > > > > Unable to handle kernel paging request for data at address 0x00000010. > > Faulting instruction address: 0xc0000000002ee1b0................... > > 0:mon> e > > cpu 0x0: Vector: 300 (Data Access) at [c0000000d6cf63c0] > > pc: c0000000002ee1b0: .rb_erase+0x16c/0x3b4 > > lr: c0000000002e14d0: .cfq_prio_tree_add+0x58/0x120 > > sp: c0000000d6cf6640 > > msr: 8000000000009032 > > dar: 10 > > dsisr: 40000000 > > current = 0xc0000000fbdf5880 > > paca = 0xc000000000a92300 > > pid = 1867, comm = ld > > 0:mon> t > > [c0000000d6cf66d0] c0000000002e14d0 .cfq_prio_tree_add+0x58/0x120 > > [c0000000d6cf6770] c0000000002e16c8 .__cfq_slice_expired+0xc8/0x11c > > [c0000000d6cf6800] c0000000002e3920 .cfq_insert_request+0x374/0x3f4 > > [c0000000d6cf68a0] c0000000002cf448 .elv_insert+0x234/0x348 > > [c0000000d6cf6940] c0000000002d3348 .__make_request+0x514/0x5b0 > > [c0000000d6cf6a00] c0000000002d1348 .generic_make_request+0x430/0x4c8 > > [c0000000d6cf6b30] c0000000002d14dc .submit_bio+0xfc/0x124 > > [c0000000d6cf6bf0] c000000000156998 .submit_bh+0x14c/0x198 > > [c0000000d6cf6c80] c00000000015ba78 .block_read_full_page+0x394/0x40c > > [c0000000d6cf7180] c000000000163080 .do_mpage_readpage+0x680/0x688 > > [c0000000d6cf7690] c000000000163200 .mpage_readpages+0x104/0x190 > > [c0000000d6cf77f0] c0000000001e2aac .ext3_readpages+0x28/0x40 > > [c0000000d6cf7870] c0000000000ebd20 .__do_page_cache_readahead+0x180/0x278 > > [c0000000d6cf7960] c0000000000ec16c .ondemand_readahead+0x1ac/0x1d8 > > [c0000000d6cf7a00] c0000000000e1f28 .generic_file_aio_read+0x260/0x6b0 > > [c0000000d6cf7b40] c000000000129f74 .do_sync_read+0xcc/0x130 > > [c0000000d6cf7ce0] c00000000012af44 .vfs_read+0xd0/0x1bc > > [c0000000d6cf7d80] c00000000012b138 .SyS_read+0x58/0xa0 > > [c0000000d6cf7e30] c0000000000084ac syscall_exit+0x0/0x40 > > Just ran into this myself, too. I'll pull that bad patch from -next > asap. I wont be able to fix this before next week. Can you see if this fixes it for you? diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index e01b103..64de5c0 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1654,6 +1654,7 @@ retry: } RB_CLEAR_NODE(&cfqq->rb_node); + RB_CLEAR_NODE(&cfqq->p_node); INIT_LIST_HEAD(&cfqq->fifo); atomic_set(&cfqq->ref, 0); -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
