Hi,All.
Today I have upgraded the kernel version from 3.17.4 to 3.19.3 (APM aarch64), found some strange error , and these error caused the system can not enter the command,I picked up the main error :
[ 0.013618] WARNING: CPU: 0 PID: 1 at drivers/firmware/dmi_scan.c:657 dmi_matches+0x10c/0x110()
[ 0.013623] dmi check: not initialized yet.
[ 0.013626] Modules linked in:
[ 0.013632] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.3-200.fc21.aarch64 #1
[ 0.013636] Hardware name: APM X-Gene Mustang board (DT)
[ 0.013640] Call trace:
[ 0.013646] [<fffffe0000097624>] dump_backtrace+0x0/0x164
[ 0.013651] [<fffffe00000977a4>] show_stack+0x1c/0x28
[ 0.013657] [<fffffe000077fd88>] dump_stack+0x74/0x94
[ 0.013662] [<fffffe00000bd908>] warn_slowpath_common+0xa4/0xdc
[ 0.013667] [<fffffe00000bd9b4>] warn_slowpath_fmt+0x74/0x88
[ 0.013671] [<fffffe00005f9b80>] dmi_matches+0x108/0x110
[ 0.013676] [<fffffe00005f9bb4>] dmi_check_system+0x2c/0x70
[ 0.013681] [<fffffe0000c6e614>] lockup_detector_init+0x10/0x54
[ 0.013685] [<fffffe0000c60acc>] kernel_init_freeable+0x108/0x260
[ 0.013690] [<fffffe000077d7b4>] kernel_init+0x1c/0xe0
[ 0.013705] ---[ end trace f44b0c4387855b6d ]---
[ 0.013708] ------------[ cut here ]------------
[ 0.013713] WARNING: CPU: 0 PID: 1 at drivers/firmware/dmi_scan.c:657 dmi_matches+0x10c/0x110()
[ 0.013718] dmi check: not initialized yet.
[ 0.013721] Modules linked in:
[ 0.013725] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.19.3-200.fc21.aarch64 #1
[ 0.013730] Hardware name: APM X-Gene Mustang board (DT)
[ 0.013733] Call trace:
[ 0.013737] [<fffffe0000097624>] dump_backtrace+0x0/0x164
[ 0.013741] [<fffffe00000977a4>] show_stack+0x1c/0x28
[ 0.013745] [<fffffe000077fd88>] dump_stack+0x74/0x94
[ 0.013750] [<fffffe00000bd908>] warn_slowpath_common+0xa4/0xdc
[ 0.013754] [<fffffe00000bd9b4>] warn_slowpath_fmt+0x74/0x88
[ 0.013759] [<fffffe00005f9b80>] dmi_matches+0x108/0x110
[ 0.013763] [<fffffe00005f9bb4>] dmi_check_system+0x2c/0x70
[ 0.013767] [<fffffe0000c6e614>] lockup_detector_init+0x10/0x54
[ 0.013772] [<fffffe0000c60acc>] kernel_init_freeable+0x108/0x260
[ 0.013776] [<fffffe000077d7b4>] kernel_init+0x1c/0xe0
[ 0.013780] ---[ end trace f44b0c4387855b6e ]—