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 <root@xxxxxxxxxxxxxxxx>
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 <n-horiguchi@xxxxxxxxxxxxx>
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 <n-horiguchi@xxxxxxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
Acked-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
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