On Wed, Apr 1, 2015 at 4:41 PM, Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote: > On Wed, Apr 01, 2015 at 01:53:51PM +0200, Stefan Priebe - Profihost AG wrote: >> Hi, >> >> while using 3.18.9 i got several times the following stack trace: >> >> kernel BUG at mm/filemap.c:203! >> invalid opcode: 0000 [#1] SMP >> Modules linked in: dm_mod netconsole usbhid sd_mod sg ata_generic >> virtio_net virtio_scsi uhci_hcd ehci_hcd usbcore virtio_pci usb_common >> virtio_ring ata_piix virtio floppy >> CPU: 3 PID: 1 Comm: busybox Tainted: G B 3.18.9 #1 As I see this isn't first oops -> kernel already tainted with 'B' Bad-page-state. Please look at first splash where is no 'B' flag. >> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS >> rel-1.7.5.1-0-g8936dbb-20141113_115728-nilsson.home.kraxel.org 04/01/2014 >> task: ffff880137b98000 ti: ffff880137b94000 task.ti: ffff880137b94000 >> RIP: 0010:[<ffffffff81134495>] [<ffffffff81134495>] >> __delete_from_page_cache+0x2b5/0x2c0 >> RSP: 0018:ffff880137b97be8 EFLAGS: 00010046 >> RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00000000ffffffd0 >> RDX: 0000000000000030 RSI: 000000000000000a RDI: ffff88013f9696c0 >> RBP: ffff880137b97c38 R08: 0000000000000000 R09: ffffea0002e927c0 >> R10: ffff8800bba92da0 R11: ffff880137b97c00 R12: ffffea0002e92480 >> R13: ffff8800bba8c4c8 R14: 0000000000000000 R15: ffff8800bba8c4d0 >> FS: 00007f5a79e0b700(0000) GS:ffff880139060000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> CR2: 00000000023c3138 CR3: 00000000b84ba000 CR4: 00000000000006e0 >> Stack: >> 000000000000000e ffff880137b97d48 ffff8800bba92da0 ffff8800bba92dc8 >> ffff880137b97c68 ffffea0002e92480 ffff8800bba8c4c8 0000000000000000 >> 0000000000000000 0000000000000000 ffff880137b97c68 ffffffff81134604 >> Call Trace: >> [<ffffffff81134604>] delete_from_page_cache+0x44/0x70 >> [<ffffffff811413cb>] truncate_inode_page+0x5b/0x90 >> [<ffffffff811415a4>] truncate_inode_pages_range+0x1a4/0x6c0 >> [<ffffffff81141b45>] truncate_inode_pages+0x15/0x20 >> [<ffffffff81141c4c>] truncate_inode_pages_final+0x3c/0x50 >> [<ffffffff811bb83c>] evict+0x16c/0x180 >> [<ffffffff811bbed5>] iput+0x105/0x190 >> [<ffffffff811b0c19>] do_unlinkat+0x189/0x2b0 >> [<ffffffff811b1a46>] SyS_unlink+0x16/0x20 >> [<ffffffff815f6592>] system_call_fastpath+0x12/0x17 >> Code: 66 0f 1f 44 00 00 48 8b 75 c0 4c 89 ff e8 e4 5d 1f 00 84 c0 0f 85 >> 5e fe ff ff e9 41 fe ff ff 0f 1f 80 00 00 00 00 e8 75 70 4b 00 <0f> 0b >> 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 83 e2 fd 48 >> RIP [<ffffffff81134495>] __delete_from_page_cache+0x2b5/0x2c0 >> RSP <ffff880137b97be8> >> ---[ end trace a4727cb71335dbd4 ]--- >> >> Is this a known bug? > > +Hugh, Konstantin. > > Nothing I recognize. Looks somewhat like[1], but not really. > > Do you have a way to reproduce? What fs it was? > > [1] lkml.kernel.org/g/20140603042121.GA27177@xxxxxxxxxx > > -- > Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>