Public bug reported:
Focal daily 20200507 (started earlier)
Kernel is 5.4.0-30.34
Kernel crashes on boot in Qemu with:
[ 4.019922] RIP: 0010:ovl_open_realfile+0x4a/0x150 [overlay]
[ 4.022101] Code: 44 8b 6f 40 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0
49 8b 7e 28 41 81 cd 00 00 04 04 e8 9d d4 ff ff 49 89 c7 48 8b 45 c8 <48> 8b 40
68 48 81 78 60 62 6a 65 6a 0f 84 a6 00 00 00 65 48 8b 04
[ 4.027487] RSP: 0018:ffffac44c0707c08 EFLAGS: 00010202
[ 4.029424] RAX: 0f230ca096f12900 RBX: ffff9e44e9c2eaa0 RCX: 0000000000000001
[ 4.031645] RDX: ffff9e44ea9ae540 RSI: ffff9e44e9c2eaa0 RDI: ffff9e44fb281f00
[ 4.033811] RBP: ffffac44c0707c50 R08: ffff9e44e9e3cc00 R09: 0000000000000000
[ 4.036428] R10: ffff9e44ea9ae540 R11: 0000000000000000 R12: ffff9e44f9ec9c00
[ 4.038737] R13: 0000000004048002 R14: ffff9e44eaa51b00 R15: ffff9e44e9e3cc00
[ 4.046087] FS: 00007f91962a6600(0000) GS:ffff9e44fbb00000(0000)
knlGS:0000000000000000
[ 4.051277] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.055455] CR2: 000056295fbc4a59 CR3: 0000000169c80000 CR4: 00000000000006e0
[ 4.059614] general protection fault: 0000 [#4] SMP NOPTI
[ 4.061700] CPU: 1 PID: 360 Comm: cp Tainted: G D
5.4.0-30-generic #34-Ubuntu
[ 4.063016] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.13.0-1ubuntu1 04/01/2014
[ 4.063016] RIP: 0010:ovl_open_realfile+0x4a/0x150 [overlay]
[ 4.063016] Code: 44 8b 6f 40 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0
49 8b 7e 28 41 81 cd 00 00 04 04 e8 9d d4 ff ff 49 89 c7 48 8b 45 c8 <48> 8b 40
68 48 81 78 60 62 6a 65 6a 0f 84 a6 00 00 00 65 48 8b 04
[ 4.063016] RSP: 0018:ffffac44c0373c08 EFLAGS: 00010206
[ 4.063016] RAX: 1579f0d048c0c300 RBX: ffff9e44eaa3f478 RCX: 0000000000000000
[ 4.063016] RDX: 0000000000000000 RSI: ffff9e44eaa3f478 RDI: ffff9e44fb281f00
[ 4.063016] RBP: ffffac44c0373c50 R08: ffff9e44fb3ac6c0 R09: 0000000000000000
[ 4.063016] R10: 0000000000000001 R11: 0000007461642e73 R12: ffff9e44f9b2d700
[ 4.063016] R13: 0000000004048000 R14: ffff9e44fa3d65c0 R15: ffff9e44fb3ac6c0
[ 4.063016] FS: 00007f91962a6600(0000) GS:ffff9e44fbb00000(0000)
knlGS:0000000000000000
[ 4.063016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.063016] CR2: 000056295fbc4a59 CR3: 0000000169c80000 CR4: 00000000000006e0
[ 4.063016] Call Trace:
[ 4.063016] ? ovl_llseek+0x120/0x120 [overlay]
[ 4.063016] ovl_open+0x57/0x90 [overlay]
[ 4.063016] do_dentry_open+0x143/0x3a0
[ 4.063016] vfs_open+0x2d/0x30
[ 4.063016] do_last+0x194/0x900
[ 4.063016] path_openat+0x8d/0x290
[ 4.063016] do_filp_open+0x91/0x100
[ 4.063016] ? __alloc_fd+0x46/0x150
[ 4.063016] do_sys_open+0x17e/0x290
[ 4.063016] __x64_sys_openat+0x20/0x30
[ 4.124120] do_syscall_64+0x57/0x190
[ 4.124120] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 4.124120] RIP: 0033:0x7f91961c3d1b
[ 4.124120] Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00
00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00
f0 ff ff 0f 87 91 00 00 00 48 8b 4c 24 28 64 48 33 0c 25
[ 4.124120] RSP: 002b:00007ffebc71f1b0 EFLAGS: 00000246 ORIG_RAX:
0000000000000101
[ 4.124120] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f91961c3d1b
[ 4.124120] RDX: 0000000000000000 RSI: 0000562960241670 RDI: 00000000ffffff9c
[ 4.124120] RBP: 0000562960241670 R08: 0000000000000001 R09: 0000000000000013
[ 4.124120] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 4.124120] R13: 00000000ffffffff R14: 00007ffebc71f298 R15: 0000000000000000
[ 4.124120] Modules linked in: overlay nls_utf8 isofs dm_mirror
dm_region_hash dm_log hid_generic usbhid hid qxl ttm drm_kms_helper ahci
syscopyarea sysfillrect virtio_net net_failover i2c_i801 libahci psmouse
lpc_ich sysimgblt fb_sys_fops failover virtio_blk drm
Reproduced on bionic and focal hosts.
Groovy daily boots fine.
boot message attached.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: qemu 1:4.2-3ubuntu6
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu32
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri May 8 15:36:38 2020
Dependencies:
InstallationDate: Installed on 2014-07-15 (2124 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
MachineType: Gigabyte Technology Co., Ltd. GA-890GPA-UD3H
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic
root=UUID=0889d734-ea91-4bdb-9d16-2a0a923ad3d1 ro
SourcePackage: qemu
UpgradeStatus: Upgraded to groovy on 2018-03-24 (775 days ago)
dmi.bios.date: 07/23/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: FD
dmi.board.name: GA-890GPA-UD3H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias:
dmi:bvnAwardSoftwareInternational,Inc.:bvrFD:bd07/23/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-890GPA-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-890GPA-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-890GPA-UD3H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Critical
Status: New
** Affects: qemu (Ubuntu)
Importance: Critical
Status: New
** Tags: amd64 apport-bug focal groovy rls-ff-incoming
** Attachment added: "tty.log"
https://bugs.launchpad.net/bugs/1877575/+attachment/5368399/+files/tty.log
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags added: focal rls-ff-incoming
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: qemu (Ubuntu)
Importance: Undecided => Critical
** Summary changed:
- kernel crash in Qemu with focal daily
+ kernel crash with 0010:ovl_open_realfile+0x4a/0x150 [overlay] in Qemu with
focal daily
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https://bugs.launchpad.net/bugs/1877575
Title:
kernel crash with 0010:ovl_open_realfile+0x4a/0x150 [overlay] in Qemu
with focal daily
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