【22.03-RC5】【arm/x86】安装kernel-rt后重启，系统无法启动

[   10.046840][  T768] usb 5-1: Manufacturer: Generic
[   10.088991][  T768] hub 5-1:1.0: USB hub found
[   10.089517][  T768] hub 5-1:1.0: 4 ports detected
[   10.135313][  T911] usb 1-1.1: New USB device found, idVendor=12d1, idProduct=0003, bcdDevice= 1.00
[   10.135316][  T911] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   10.135318][  T911] usb 1-1.1: Product: Keyboard/Mouse KVM 1.1.0
[   10.151202][  T911] input: Keyboard/Mouse KVM 1.1.0 as /devices/pci0000:7a/0000:7a:01.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:12D1:0003.0001/input/input1
[   10.170564][   T19] usb 6-1: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd
[   10.198861][   T19] usb 6-1: New USB device found, idVendor=0bda, idProduct=0411, bcdDevice= 1.01
[   10.198864][   T19] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   10.198865][   T19] usb 6-1: Product: 4-Port USB 3.1 Hub
[   10.198867][   T19] usb 6-1: Manufacturer: Generic
[   10.210608][  T911] hid-generic 0003:12D1:0003.0001: input,hidraw0: USB HID v1.10 Keyboard [Keyboard/Mouse KVM 1.1.0] on usb-0000:7a:01.0-1.1/input0
[   10.219339][   T19] hub 6-1:1.0: USB hub found
[   10.220078][   T19] hub 6-1:1.0: 4 ports detected
[   10.220990][  T911] input: Keyboard/Mouse KVM 1.1.0 as /devices/pci0000:7a/0000:7a:01.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:12D1:0003.0002/input/input2
[   10.221098][  T911] hid-generic 0003:12D1:0003.0002: input,hidraw1: USB HID v1.10 Mouse [Keyboard/Mouse KVM 1.1.0] on usb-0000:7a:01.0-1.1/input1
[   10.221747][    T1] md: Waiting for all devices to be available before autodetect
[   10.221750][    T1] md: If you don't use raid, use raid=noautodetect
[   10.221769][    T1] md: Autodetecting RAID arrays.
[   10.221770][    T1] md: autorun ...
[   10.221771][    T1] md: ... autorun DONE.
[   10.221843][    T1] List of all partitions:
[   10.221844][    T1] No filesystem could mount root, tried: 
[   10.221845][    T1] 
[   10.221845][    T1] Kernel panic - not syncing:
[   10.221846][    T1] VFS: Unable to mount root fs on unknown-block(0,0)
[   10.221848][    T1] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 5.10.0-60.17.0.rt62.49.oe1.aarch64-rt62 #1
[   10.221851][    T1] Hardware name: Huawei TaiShan 200 (Model 2280)/BC82AMDDA, BIOS 1.77 06/28/2021
[   10.221852][    T1] Call trace:
[   10.221853][    T1]  dump_backtrace+0x0/0x1e4
[   10.221857][    T1]  show_stack+0x20/0x2c
[   10.221858][    T1]  dump_stack+0xd0/0x134
[   10.221861][    T1]  panic+0xd4/0x3c8
[   10.221864][    T1]  mount_block_root+0x1d8/0x20c
[   10.221868][    T1]  mount_root+0x78/0x88
[   10.221870][    T1]  prepare_namespace+0x13c/0x1b4
[   10.221872][    T1]  kernel_init_freeable+0x178/0x1d8
[   10.221874][    T1]  kernel_init+0x1c/0x130
[   10.221876][    T1]  ret_from_fork+0x10/0x18
[   10.721955][    T1] SMP: stopping secondary CPUs
[   10.726571][    T1] Kernel Offset: disabled
[   10.730736][    T1] CPU features: 0x0000,88000002,2a208838
[   10.736198][    T1] Memory Limit: none
[   10.739932][    T1] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---

[   12.138244][    T1] systemd[1]: Reached target Swaps.
[   12.235194][    T1] systemd[1]: Reached target Timer Units.
[   12.294260][    T1] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journa[   12.323735][    T1] systemd[1]: Listening on Journal Socket.
l Socket.
[  OK  ] Listening on udev C[   12.343754][    T1] systemd[1]: Listening on udev Control Socket.
ontrol Socket.
[  OK  ] Listening on udev K[   12.363700][    T1] systemd[1]: Listening on udev Kernel Socket.
ernel Socket.
[  OK  ] Reached target Sock[   12.383592][    T1] systemd[1]: Reached target Socket Units.
et Units.
[   12.403634][    T1] systemd[1]: Condition check resulted in Create List of Static Device Nodes being skipped.
[  OK     12.486336][    T1] systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
0m] Started Hardware RNG Entropy Gatherer Daemon.
         Startin[   12.507945][    T1] systemd[1]: systemd-journald.service: unit configures an IP firewall, but the local system does not support BPF/cgroup firewalling.
g Journ[   12.507950][    T1] systemd[1]: (This warning is only shown for the first unit using IP firewalling.)
al Service..[   12.510190][    T1] systemd[1]: Starting Journal Service...
.
         Starting Load Kernel Modules   12.559769][    T1] systemd[1]: Starting Load Kernel Modules...
0m...
         Starting Creat[   12.582056][    T1] systemd[1]: Starting Create Static Device Nodes in /dev...
e Static Device Nodes in /dev...
         Starting Setup[   12.605848][    T1] systemd[1]: Starting Setup Virtual Console...
 Virtual Console...
[  OK  ] Started Journal Ser[   12.632415][    T1] systemd[1]: Started Journal Service.
vice.
[FAILED] Failed to start Load Kernel Modules.
See 'systemctl status systemd-modules-load.service' for details.
[  OK  ] Finished Create Static Device Nodes in /dev.
[  OK  ] Finished Setup Virtual Console.
         Starting dracut cmdline hook...
         Starting Apply Kernel Variables...
         Starting Create Volatile Files and Directories...
[  OK  ] Finished Create Volatile Files and Directories.
[  OK  ] Finished Apply Kernel Variables.
[  OK  ] Finished dracut cmdline hook.
         Starting dracut pre-udev hook...
[   12.666523] dracut-pre-udev[1206]: modprobe: FATAL: Module dm_mod not found in directory /lib/modules/5.10.0-60.17.0.rt62.49.oe1.aarch64-rt62
[  OK  ] Finished dracut pre-udev hook.
         Starting Rule-based Manage…for Device Events and Files...
[  OK  ] Started Rule-based Manager for Device Events and Files.
         Starting Coldplug All udev Devices...
[  OK  ] Finished Coldplug All udev Devices.
[  OK  ] Reached target System Initialization.
         Starting dracut initqueue hook...
         Starting Show Plymouth Boot Screen...
[  OK  ] Started Show Plymouth Boot Screen.
[  OK  ] Started Forward Password R…s to Plymouth Directory Watch.
[  OK  ] Reached target Path Units.
[  OK  ] Reached target Basic System.

是的，确实由于 `scripts/setlocalversion` 脚本会读取localversion-rt文件内容添加-rt62
```
linux-5.10.0-60.18.0.rt62.51.aarch64# make kernelrelease
5.10.0-60.18.0.rt62.51.aarch64-rt62
```

由于编译 kernel-rt.spec 时没有配置 KERNELRELEASE
```
make ARCH=%{Arch} openeuler_defconfig

TargetImage=$(basename $(make -s image_name))

make ARCH=%{Arch} $TargetImage %{?_smp_mflags}
make ARCH=%{Arch} modules %{?_smp_mflags}
```
没有配置 KERNELRELEASE，使用 make -j\`nproc\`编译后，模块信息带有-rt62
```
linux-5.10.0-60.18.0.rt62.51.aarch64# modinfo ./drivers/media/dvb-frontends/lg2160.ko
filename:       /home/myk/rpmbuild/BUILD/kernel-5.10.0/linux-5.10.0-60.18.0.rt62.51.aarch64/./drivers/media/dvb-frontends/lg2160.ko
version:        0.3
license:        GPL
author:         Michael Krufky <mkrufky@linuxtv.org>
description:    LG Electronics LG216x ATSC/MH Demodulator Driver
srcversion:     436B46C148817BBE6B6C623
depends:        
intree:         Y
name:           lg2160
vermagic:       5.10.0-60.18.0.rt62.51.aarch64-rt62 SMP preempt_rt mod_unload modversions aarch64
parm:           debug:set debug level (info=1, reg=2 (or-able)) (int)
```
加上 KERNELRELEASE，使用 make KERNELRELEASE=5.10.0-60.18.0.rt62.51.aarch64 -j\`nproc\`编译后，模块信息没有-rt62
```
linux-5.10.0-60.18.0.rt62.51.aarch64# modinfo ./drivers/media/dvb-frontends/lg2160.ko
filename:       /home/myk/rpmbuild/BUILD/kernel-5.10.0/linux-5.10.0-60.18.0.rt62.51.aarch64/./drivers/media/dvb-frontends/lg2160.ko
version:        0.3
license:        GPL
author:         Michael Krufky <mkrufky@linuxtv.org>
description:    LG Electronics LG216x ATSC/MH Demodulator Driver
srcversion:     436B46C148817BBE6B6C623
depends:        
intree:         Y
name:           lg2160
vermagic:       5.10.0-60.18.0.rt62.51.aarch64 SMP preempt_rt mod_unload modversions aarch64
parm:           debug:set debug level (info=1, reg=2 (or-able)) (int)

```
树莓派编译添加KERNELRELEASE配置，所以没有出现kernel-rt类似问题

```
%build
cd linux-%{KernelVer}

perl -p -i -e "s/^EXTRAVERSION.*/EXTRAVERSION = -%{release}.raspi.%{_target_cpu}/" Makefile

make ARCH=%{Arch} %{?_smp_mflags} bcm2711_defconfig

make ARCH=%{Arch} %{?_smp_mflags} KERNELRELEASE=%{KernelVer}
```
去掉localversion-rt文件 PR 已提交。

GVP openEuler/kernel

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GVPopenEuler/kernel

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