** Also affects: subiquity (Ubuntu)
Importance: Undecided
Status: New
** Tags added: enablement-18.04.5
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https://bugs.launchpad.net/bugs/1890867
Title:
kernel trace of 18.04.5 daily image (20200806.1) on Hisilicon D05
arm64 arch
Status in linux package in Ubuntu:
Confirmed
Status in subiquity package in Ubuntu:
New
Bug description:
image: 18.04.5 daily image (20200806.1) bionic-live-server-arm64.iso
kernel: 4.15.0-112-generic #113-Ubuntu
platform: Hisilicon D05 arm64 arch
[Reproducing Steps]
1. setup pxe boot by following
https://discourse.ubuntu.com/t/netbooting-the-live-server-installer/14510
2. pxe boot the machine with the image
[Expected Result]
Boot to subiquity
[Actual Result]
Kernel trace happened during booting process. Reproducing rate: 2 out of 2.
[ 6.643543] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.15.0-112-generic
#113-Ubuntu
[ 6.651271] Hardware name: Hisilicon D05/BC11SPCD, BIOS 1.50 06/01/2018
[ 6.657871] Call trace:
[ 6.660308] dump_backtrace+0x0/0x198
[ 6.663957] show_stack+0x24/0x30
[ 6.667261] dump_stack+0x98/0xbc
[ 6.670563] panic+0x128/0x2a4
[ 6.673606] mount_block_root+0x210/0x2e8
[ 6.677603] mount_root+0x7c/0x8c
[ 6.680904] prepare_namespace+0x144/0x1dc
[ 6.684987] kernel_init_freeable+0x218/0x23c
[ 6.689331] kernel_init+0x18/0x110
[ 6.692806] ret_from_fork+0x10/0x18
[ 6.696428] SMP: stopping secondary CPUs
[ 6.700345] Kernel Offset: disabled
[ 6.703821] CPU features: 0x00002008
[ 6.707382] Memory Limit: none
[ 6.710438] ---[ end Kernel panic - not syncing: VFS: Unable to mount root
fs on unknown-block(0,0)
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