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Groups > linux.kernel > #1375644
| From | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: x86: bad pte in pageattr_test |
| Date | 2016-04-11 11:10 +0200 |
| Message-ID | <rmG14-3kL-3@gated-at.bofh.it> (permalink) |
| References | <rmFon-2Ng-31@gated-at.bofh.it> <rmFRp-2Ze-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Apr 11, 2016 at 10:52 AM, Andrey Ryabinin <ryabinin.a.a@gmail.com> wrote: > > > On 04/11/2016 11:28 AM, Dmitry Vyukov wrote: >> Hello, >> >> I've got the following WARNING while running syzkaller fuzzer: >> >> CPA ffff880054118000: bad pte after revert 8000000054118363 >> ------------[ cut here ]------------ >> WARNING: CPU: 2 PID: 1503 at arch/x86/mm/pageattr-test.c:226 >> pageattr_test+0xa6c/0xd10 >> NOT PASSED. Please report. >> Modules linked in: >> CPU: 2 PID: 1503 Comm: pageattr-test Not tainted 4.6.0-rc2+ #346 >> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 >> ffffffff87eb25c0 ffff88003b627a70 ffffffff82c8b17f ffffffff81490b58 >> fffffbfff0fd64b8 ffff88003b627ae8 0000000000000000 ffffffff86a77e00 >> ffffffff8129487c 0000000000000009 ffff88003b627ab8 ffffffff8136639f >> Call Trace: >> [< inline >] __dump_stack lib/dump_stack.c:15 >> [<ffffffff82c8b17f>] dump_stack+0x12e/0x18f lib/dump_stack.c:51 >> [<ffffffff8136639f>] __warn+0x19f/0x1e0 kernel/panic.c:512 >> [<ffffffff8136648c>] warn_slowpath_fmt+0xac/0xd0 kernel/panic.c:527 >> [<ffffffff8129487c>] pageattr_test+0xa6c/0xd10 arch/x86/mm/pageattr-test.c:226 >> [<ffffffff81294b3b>] do_pageattr_test+0x1b/0x60 arch/x86/mm/pageattr-test.c:240 >> [<ffffffff813cde7f>] kthread+0x23f/0x2d0 drivers/block/aoe/aoecmd.c:1303 > > It seems, that your script is buggy. It should be kthread() from kernel/kthread.c here. I probably used a non-matching vmlinux for symbolization. Please check the raw report below if the symbolized one does not make sense. \/\/\/\/\/\/\/\/ >> For the repcord, full syzkaller log: >> https://gist.githubusercontent.com/dvyukov/323ff7275c5ac38156cb40caeacac057/raw/0836f8dd81024e441f81caebdcb73ca1221aef97/gistfile1.txt
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x86: bad pte in pageattr_test Dmitry Vyukov <dvyukov@google.com> - 2016-04-11 10:30 +0200
Re: x86: bad pte in pageattr_test Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2016-04-11 11:00 +0200
Re: x86: bad pte in pageattr_test Dmitry Vyukov <dvyukov@google.com> - 2016-04-11 11:10 +0200
Re: x86: bad pte in pageattr_test Andrey Ryabinin <ryabinin.a.a@gmail.com> - 2016-04-11 11:40 +0200
Re: x86: bad pte in pageattr_test Dmitry Vyukov <dvyukov@google.com> - 2016-04-11 11:50 +0200
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