lkml.org 
[lkml]   [2018]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: kernel BUG at mm/shmem.c:LINE!
    On Fri, Jul 06, 2018 at 06:19:02PM -0700, syzbot wrote:
    > IMPORTANT: if you fix the bug, please add the following tag to the commit:
    > Reported-by: syzbot+b8e0dfee3fd8c9012771@syzkaller.appspotmail.com
    >
    > raw: 02fffc0000001028 ffffea0007011dc8 ffffea0007058b48 ffff8801a7576ab8
    > raw: 000000000000016e ffff8801a7588930 00000003ffffffff ffff8801d9a44c80
    > page dumped because: VM_BUG_ON_PAGE(page_to_pgoff(page) != index)
    > page->mem_cgroup:ffff8801d9a44c80
    > ------------[ cut here ]------------
    > kernel BUG at mm/shmem.c:815!
    > invalid opcode: 0000 [#1] SMP KASAN
    > CPU: 0 PID: 4429 Comm: syz-executor697 Not tainted 4.18.0-rc3-next-20180706+
    > #1
    > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
    > Google 01/01/2011
    > RIP: 0010:shmem_undo_range+0xdaa/0x29a0 mm/shmem.c:815

    Pretty sure this one's mine. At least I spotted a codepath earlier
    today which could lead to it. I'll fix it in the morning.

    \
     
     \ /
      Last update: 2018-07-07 04:59    [W:2.336 / U:0.028 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site