Hi I get following oops when try to use kvm cache=none
qemu-system-x86_64 ... -drive file=image.raw,cache=none,if=virtio,boot=on mapping failed logical 223936823296 bio len 28672 len 16384 ------------[ cut here ]------------ kernel BUG at fs/btrfs/volumes.c:3017! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/kernel/mm/ksm/pages_shared CPU 1 Modules linked in: vhost_net macvtap macvlan libafs(P) ipv6 af_packet bridge stp llc dm_mod tun bitrev crc32 kvm_amd kvm cn cfq_iosched blk_cgroup ata_generic sr_mod cdrom snd_hda_code c_realtek usbhid usbkbd radeon ttm drm_kms_helper drm firmware_class option usb_wwan usbseri al usb_storage pata_acpi radeonfb snd_hda_intel fb snd_hda_codec fbdev firewire_ohci firewir e_core fb_ddc crc_itu_t atkbd backlight snd_pcm sym53c8xx serio_raw rtc_cmos rtc_core evdev ohci_hcd ehci_hcd ohci1394 i2c_algo_bit scsi_transport_spi pata_amd sg rtc_lib pcspkr therma l snd_timer i2c_nforce2 usbcore cfbcopyarea snd ieee1394 cfbimgblt processor cfbfillrect the rmal_sys forcedeth soundcore container 8250_pnp tpm_tis k8temp 8250 i2c_core snd_page_alloc tpm nls_base serial_core tpm_bios button hwmon unix btrfs libcrc32c crc32c crypto_hash crypt o_algapi zlib_deflate raid1 md_mod sata_nv libata sd_mod scsi_mod Pid: 18081, comm: qemu-system-x86 Tainted: P M W 2.6.36-rc5-00087-gd7e7d7e #1 Ultra20 M2/Ultra20 M2 RIP: 0010:[<ffffffffa014050e>] [<ffffffffa014050e>] 0xffffffffa014050e RSP: 0018:ffff8800b18d3998 EFLAGS: 00010296 RAX: 0000000000000042 RBX: 0000000000000000 RCX: 0000000000007fff RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffffffff813ffe54 RBP: ffff880110fcc3c0 R08: 000000000001d5f5 R09: 0000000000000000 R10: 0000000000000000 R11: 000000000000000d R12: 0000003423acc000 R13: 0000000000007000 R14: 0000000000000001 R15: 0000000000000001 FS: 00007f58cc83a710(0000) GS:ffff880001700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000505060 CR3: 000000010ca4f000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process qemu-system-x86 (pid: 18081, threadinfo ffff8800b18d2000, task ffff8801131471b0) Stack: ffff88010f1edd00 ffff88010f1edd30 ffff880108af1000 00003423acb00080 <0> ffff88002702a240 0000000000004000 ffff88010c994000 ffff880110fcc3c0 <0> ffff88002702a5c0 ffff88010f1ede88 ffff880108af1000 0000000000000000 Call Trace: [<ffffffffa011e1e9>] ? 0xffffffffa011e1e9 [<ffffffff811031a9>] ? 0xffffffff811031a9 [<ffffffff8110322b>] ? 0xffffffff8110322b [<ffffffff81103311>] ? 0xffffffff81103311 [<ffffffff81103abf>] ? 0xffffffff81103abf [<ffffffffa013a81a>] ? 0xffffffffa013a81a [<ffffffffa011df85>] ? 0xffffffffa011df85 [<ffffffffa0121570>] ? 0xffffffffa0121570 [<ffffffffa011e0c0>] ? 0xffffffffa011e0c0 [<ffffffffa0120ce0>] ? 0xffffffffa0120ce0 [<ffffffff8109319d>] ? 0xffffffff8109319d [<ffffffff81092b60>] ? 0xffffffff81092b60 [<ffffffff810d5d69>] ? 0xffffffff810d5d69 [<ffffffff8106711b>] ? 0xffffffff8106711b [<ffffffff81068dd3>] ? 0xffffffff81068dd3 [<ffffffff810d5baf>] ? 0xffffffff810d5baf [<ffffffff810d644f>] ? 0xffffffff810d644f [<ffffffff8104eb08>] ? 0xffffffff8104eb08 [<ffffffff8104ed84>] ? 0xffffffff8104ed84 [<ffffffff810d6843>] ? 0xffffffff810d6843 [<ffffffff810023eb>] ? 0xffffffff810023eb Code: 20 e8 a7 90 f8 e0 eb 87 83 7e 64 00 90 0f 85 45 ff ff ff 0f 0b eb fe 4c 89 ea 4c 89 e6 48 c7 c7 38 fd 15 a0 31 c0 e8 72 65 14 e1 <0f> 0b eb fe 0f 0b eb fe 66 2e 0f 1f 84 00 00 00 00 00 41 54 55 RIP [<ffffffffa014050e>] 0xffffffffa014050e RSP <ffff8800b18d3998> ---[ end trace 33dc5bb4824a0127 ]--- Kernel is 2.6.36-rc5-00087-gd7e7d7e -Markus Suvanto commit d7e7d7eb1c61772662d17f6636e48a87baf7eb56 Author: root <[email protected]> Date: Fri Sep 24 19:09:17 2010 +0300 Revert "bdi: Fix warnings in __mark_inode_dirty for /dev/zero and friends" This reverts commit 692ebd17c2905313fff3c504c249c6a0faad16ec. commit a850ea30374ebed32a0724742601861853fde869 Author: Naoya Horiguchi <[email protected]> Date: Fri Sep 10 13:23:06 2010 +0900 hugetlb, rmap: add BUG_ON(!PageLocked) in hugetlb_add_anon_rmap() Confirming page lock is held in hugetlb_add_anon_rmap() may be useful to detect possible future problems. Signed-off-by: Naoya Horiguchi <[email protected]> Acked-by: Rik van Riel <[email protected]> Acked-by: Andrea Arcangeli <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
