https://bugzilla.novell.com/show_bug.cgi?id=888259
https://bugzilla.novell.com/show_bug.cgi?id=888259#c0
Summary: "Preparing disk" crashes kernel Classification: openSUSE Product: openSUSE Factory Version: 201407* Platform: i586 OS/Version: Other Status: NEW Severity: Critical Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: coolo@suse.com QAContact: qa-bugs@suse.de CC: aschnell@suse.com Found By: --- Blocker: ---
https://openqa.opensuse.org/tests/13025 shows the kernel crashing while formatting the disks.
[ 201.263361] BUG: unable to handle kernel paging request at 00d6840c [ 201.264020] IP: [<c048983a>] __blk_bios_map_sg+0x18a/0x2f0 [ 201.264020] *pde = 00000000 [ 201.264020] Oops: 0000 [#1] SMP [ 201.264020] Modules linked in: dm_multipath dm_mod scsi_dh multipath raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 md_mod parport_pc parport nls_utf8 isofs usb_storage iscsi_ibft iscsi_boot_sysfs 8021q garp stp mrp llc arc4 ecb fan thermal nfs lockd fscache nls_iso8859_1 nls_cp437 sg st af_packet hid_generic usbhid sunrpc sr_mod cdrom ata_generic cirrus syscopyarea sysfillrect sysimgblt virtio_net ttm virtio_blk uhci_hcd ehci_hcd drm_kms_helper ata_piix ahci usbcore libahci drm pvpanic processor thermal_sys libata button hwmon i2c_core floppy usb_common virtio_pci virtio_ring virtio edd squashfs loop [last unloaded: ppa] [ 201.264020] CPU: 0 PID: 4999 Comm: mkfs.btrfs Not tainted 3.16.0-rc5-1-default #1 [ 201.264020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 201.264020] task: ec1540d0 ti: d338c000 task.ti: d338c000 [ 201.264020] EIP: 0060:[<c048983a>] EFLAGS: 00010206 CPU: 0 [ 201.264020] EIP is at __blk_bios_map_sg+0x18a/0x2f0 [ 201.264020] EAX: 00d6840c EBX: d338de08 ECX: eeb3d5a4 EDX: 00d6840f [ 201.264020] ESI: 00000000 EDI: 00000000 EBP: d338ddf4 ESP: d338ddac [ 201.264020] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 201.264020] CR0: 8005003b CR2: 00d6840c CR3: 16e97000 CR4: 000006d0 [ 201.264020] Stack: [ 201.264020] f2d3ae00 00000010 d338dde4 eeb3cb90 00002000 ee921248 01000004 00000081 [ 201.264020] d336b350 00000000 f3956bc0 2c1dc000 00001000 00001000 00001000 eeb3ca80 [ 201.264020] ee921248 00000000 d338de18 c04899cf d338de08 f368d0e0 00000000 00d6840c [ 201.264020] Call Trace: [ 201.264020] [<c04899cf>] blk_rq_map_sg+0x2f/0x130 [ 201.264020] [<f84ae478>] virtio_queue_rq+0x98/0x220 [virtio_blk] [ 201.264020] [<c048ce59>] __blk_mq_run_hw_queue+0x199/0x2c0 [ 201.264020] [<c048df0b>] blk_mq_insert_requests+0xab/0x100 [ 201.264020] [<c048e8bf>] blk_mq_flush_plug_list+0x10f/0x120 [ 201.264020] [<c0485ece>] blk_flush_plug_list+0x9e/0x1b0 [ 201.264020] [<c04862d2>] blk_finish_plug+0x12/0x40 [ 201.264020] [<c0327f8d>] generic_writepages+0x3d/0x60 [ 201.264020] [<c0328d4a>] do_writepages+0x1a/0x40 [ 201.264020] [<c0320124>] __filemap_fdatawrite_range+0x54/0x60 [ 201.264020] [<c0322b2b>] SyS_fadvise64_64+0x24b/0x250 [ 201.264020] [<c071db15>] syscall_call+0x7/0xb [ 201.264020] [<b7645eb3>] 0xb7645eb2 [ 201.264020] Code: 5d e4 c1 fa 05 c1 e2 0c 03 55 dc 01 d9 39 d1 0f 84 fc 00 00 00 8d 74 26 00 83 20 fd 8b 45 08 8b 00 e8 bb fe 02 00 8b 5d 08 89 03 <8b> 10 8b 5d e0 83 e2 03 f6 c3 03 0f 85 0c 01 00 00 8b 4d dc 09 [ 201.264020] EIP: [<c048983a>] __blk_bios_map_sg+0x18a/0x2f0 SS:ESP 0068:d338ddac [ 201.264020] CR2: 0000000000d6840c [ 201.310761] ---[ end trace a22ed0866cd5a71b ]---