linux-kernel - Re: [CFQ/OOPS] rb_erase with April 9 next tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090409172918.GE5178@kernel.dk>
Date:	Thu, 9 Apr 2009 19:29:18 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Sachin Sant <sachinp@...ibm.com>
Cc:	linuxppc-dev@...abs.org, Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [CFQ/OOPS]  rb_erase with April 9 next tree

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.

-- 
Jens Axboe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/