** Summary changed:

- sometimes cold boot hangs on unmatched board
+ cold boot panics on unmatched board, soft reboot is fine

** Attachment added: "screenlog.0"
   
https://bugs.launchpad.net/ubuntu/+source/linux-riscv/+bug/1920916/+attachment/5480079/+files/screenlog.0

** Description changed:

- [   16.319808] pci 0000:04:00.0: enabling device (0000 -> 0002)
- [   16.325596] Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00
- [   16.325665] L2CACHE: No. of Banks in the cache: 4
- [   16.332152] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.11.0-1002-generic 
#1
- [   16.332165] Call Trace:
- [   16.332174] [<ffffffe000005b8c>] walk_stackframe+0x0/0xcc
- [   16.336947] L2CACHE: No. of ways per bank: 16
- [   16.344054] SMP: stopping secondary CPUs
- [   16.360467] ---[ end Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00 ]-
+ [   16.622852] Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00
+ [   16.629408] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.11.0-1004-generic 
#4-Ubuntu
+ [   16.637136] Call Trace:
+ [   16.639655] [<ffffffe000005b8c>] walk_stackframe+0x0/0xcc
+ [   16.645131] SMP: stopping secondary CPUs
+ [   16.649144] ---[ end Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00 ]---
  
+ On cold boot, I am observing L2CACHE DirFail panic, then after soft
+ reset it boots fine.
  
- On cold boot, I am observing L2CACHE DirFail panic, then after soft reset it 
boots fine.
- 
- Will try to capture the full boot log with latest kernel.
+ See full attached screenlog.0

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https://bugs.launchpad.net/bugs/1920916

Title:
  cold boot panics on unmatched board, soft reboot is fine

Status in linux-riscv package in Ubuntu:
  New

Bug description:
  [   16.622852] Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00
  [   16.629408] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.11.0-1004-generic 
#4-Ubuntu
  [   16.637136] Call Trace:
  [   16.639655] [<ffffffe000005b8c>] walk_stackframe+0x0/0xcc
  [   16.645131] SMP: stopping secondary CPUs
  [   16.649144] ---[ end Kernel panic - not syncing: L2CACHE: DirFail @ 
0x00000000.0001CB00 ]---

  On cold boot, I am observing L2CACHE DirFail panic, then after soft
  reset it boots fine.

  See full attached screenlog.0

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