[Bug 1990294] Re: Ampere AltraMax sometimes hangs after "EFI stub: Exiting boot services..."

Taihsiang Ho 1990294 at bugs.launchpad.net
Thu Feb 2 11:28:18 UTC 2023 

I updated the bug description to make it clear. Besides, I marked grub
as invalid because at this moment it looks like a kernel issue according
to the log and the reproducer.

** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

** Description changed:

- When kernel test rebooted onto the 5.15.0-43-generic HWE kernel, no
- output appeared on the console after the EFI stub:
+ Kernel trace happens when bringing up CPU with focal HWE kernel
+ 5.15.0-43-generic
+ 
+ Steps to reproduce: enable earlycon and run reboot loop
+ Expected result: system boots and ready to use
+ Actual result: kerenl trace happens when bringing up CPU. See the call trace below[1].
+ 
+ 
+ [1] (copy from comment #7)
+ 
+ [ 3.321372] arch_timer: Enabling local workaround for ARM erratum 1418040
+ [ 3.321394] CPU245: Booted secondary processor 0x0100310100 [0x413fd0c1]
+ [ 8.536939] CPU246: failed to come online
+ [ 8.550338] Detected PIPT I-cache on CPU246
+ [ 8.555817] CPU246: failed in unknown state : 0x0
+ [ 8.555987] GICv3: CPU246: found redistributor 100370000 region 1:0x0000500100f00000
+ [ 8.562727] ------------[ cut here ]------------
+ [ 8.562809] GICv3: CPU246: using allocated LPI pending table @0x0000080002680000
+ [ 8.569364] Dying CPU not properly vacated!
+ [ 16.668834] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:9215 sched_cpu_dying+0x1d0/0x2a0
+ [ 16.681496] Modules linked in:
+ [ 16.684597] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-43-generic #46~20.04.1-Ubuntu
+ [ 16.693010] pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
+ [ 16.700095] pc : sched_cpu_dying+0x1d0/0x2a0
+ [ 16.704432] lr : sched_cpu_dying+0x1d0/0x2a0
+ [ 16.708770] sp : ffff80000881bbe0
+ [ 16.712132] x29: ffff80000881bbe0 x28: ffffcca930eada80 x27: 0000000000000000
+ [ 16.719390] x26: ffff7395107ce000 x25: 00000000000000f6 x24: ffff403e40ed6728
+ [ 16.726651] x23: ffffcca930eb2618 x22: 0000000000000000 x21: 00000000000000f6
+ [ 16.733907] x20: ffffcca930719100 x19: ffff403e40ee7100 x18: 0000000000000014
+ [ 16.741165] x17: 3836323030303830 x16: 3030303078304020 x15: 656c62617420676e
+ [ 16.748425] x14: 69646e6570204950 x13: 3030303038363230 x12: 3030383030303030
+ [ 16.755683] x11: 78304020656c6261 x10: 7420676e69646e65 x9 : ffffcca92e7e39a0
+ [ 16.762940] x8 : 6c6c6120676e6973 x7 : 205d393038323635 x6 : c0000000fffeffff
+ [ 16.770198] x5 : 000000000017ffe8 x4 : 0000000000000000 x3 : ffff80000881b8c8
+ [ 16.777457] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
+ [ 16.784717] Call trace:
+ [ 16.787197] sched_cpu_dying+0x1d0/0x2a0
+ [ 16.791182] cpuhp_invoke_callback+0x14c/0x5a8
+ [ 16.795699] cpuhp_invoke_callback_range+0x5c/0xb8
+ [ 16.800568] _cpu_up+0x234/0x360
+ [ 16.803844] cpu_up+0xb8/0x110
+ [ 16.806945] bringup_nonboot_cpus+0x7c/0xb0
+ [ 16.811195] smp_init+0x3c/0x98
+ [ 16.814385] kernel_init_freeable+0x1a4/0x39c
+ [ 16.818813] kernel_init+0x2c/0x158
+ [ 16.822359] ret_from_fork+0x10/0x20
+ [ 16.825992] ---[ end trace bb9ca924bc23dd10 ]---
+ [ 16.830685] CPU246 enqueued tasks (0 total):
+ [ 16.835356] ------------[ cut here ]------------
+ [ 16.835431] GICv3: CPU246: found redistributor 100370000 region 1:0x0000500100f00000
+ [ 16.840045] Dying CPU not properly vacated!
+ [ 16.847925] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:9215 sched_cpu_dying+0x1d0/0x2a
+ 
+ 
+ == Original Description ==
+ 
+ 
+ When kernel test rebooted onto the 5.15.0-43-generic HWE kernel, no output appeared on the console after the EFI stub:
  
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint A0
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint AD
  EFI stub: Booting Linux Kernel...
  EFI stub: ERROR: FIRMWARE BUG: kernel image not aligned on 64k boundary
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services...

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https://bugs.launchpad.net/bugs/1990294

Title:
  Ampere AltraMax sometimes hangs after "EFI stub: Exiting boot
  services..."

Status in grub2 package in Ubuntu:
  Invalid
Status in linux package in Ubuntu:
  In Progress

Bug description:
  Kernel trace happens when bringing up CPU with focal HWE kernel
  5.15.0-43-generic

  Steps to reproduce: enable earlycon and run reboot loop
  Expected result: system boots and ready to use
  Actual result: kerenl trace happens when bringing up CPU. See the call trace below[1].

  
  [1] (copy from comment #7)

  [ 3.321372] arch_timer: Enabling local workaround for ARM erratum 1418040
  [ 3.321394] CPU245: Booted secondary processor 0x0100310100 [0x413fd0c1]
  [ 8.536939] CPU246: failed to come online
  [ 8.550338] Detected PIPT I-cache on CPU246
  [ 8.555817] CPU246: failed in unknown state : 0x0
  [ 8.555987] GICv3: CPU246: found redistributor 100370000 region 1:0x0000500100f00000
  [ 8.562727] ------------[ cut here ]------------
  [ 8.562809] GICv3: CPU246: using allocated LPI pending table @0x0000080002680000
  [ 8.569364] Dying CPU not properly vacated!
  [ 16.668834] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:9215 sched_cpu_dying+0x1d0/0x2a0
  [ 16.681496] Modules linked in:
  [ 16.684597] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-43-generic #46~20.04.1-Ubuntu
  [ 16.693010] pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
  [ 16.700095] pc : sched_cpu_dying+0x1d0/0x2a0
  [ 16.704432] lr : sched_cpu_dying+0x1d0/0x2a0
  [ 16.708770] sp : ffff80000881bbe0
  [ 16.712132] x29: ffff80000881bbe0 x28: ffffcca930eada80 x27: 0000000000000000
  [ 16.719390] x26: ffff7395107ce000 x25: 00000000000000f6 x24: ffff403e40ed6728
  [ 16.726651] x23: ffffcca930eb2618 x22: 0000000000000000 x21: 00000000000000f6
  [ 16.733907] x20: ffffcca930719100 x19: ffff403e40ee7100 x18: 0000000000000014
  [ 16.741165] x17: 3836323030303830 x16: 3030303078304020 x15: 656c62617420676e
  [ 16.748425] x14: 69646e6570204950 x13: 3030303038363230 x12: 3030383030303030
  [ 16.755683] x11: 78304020656c6261 x10: 7420676e69646e65 x9 : ffffcca92e7e39a0
  [ 16.762940] x8 : 6c6c6120676e6973 x7 : 205d393038323635 x6 : c0000000fffeffff
  [ 16.770198] x5 : 000000000017ffe8 x4 : 0000000000000000 x3 : ffff80000881b8c8
  [ 16.777457] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
  [ 16.784717] Call trace:
  [ 16.787197] sched_cpu_dying+0x1d0/0x2a0
  [ 16.791182] cpuhp_invoke_callback+0x14c/0x5a8
  [ 16.795699] cpuhp_invoke_callback_range+0x5c/0xb8
  [ 16.800568] _cpu_up+0x234/0x360
  [ 16.803844] cpu_up+0xb8/0x110
  [ 16.806945] bringup_nonboot_cpus+0x7c/0xb0
  [ 16.811195] smp_init+0x3c/0x98
  [ 16.814385] kernel_init_freeable+0x1a4/0x39c
  [ 16.818813] kernel_init+0x2c/0x158
  [ 16.822359] ret_from_fork+0x10/0x20
  [ 16.825992] ---[ end trace bb9ca924bc23dd10 ]---
  [ 16.830685] CPU246 enqueued tasks (0 total):
  [ 16.835356] ------------[ cut here ]------------
  [ 16.835431] GICv3: CPU246: found redistributor 100370000 region 1:0x0000500100f00000
  [ 16.840045] Dying CPU not properly vacated!
  [ 16.847925] WARNING: CPU: 0 PID: 1 at kernel/sched/core.c:9215 sched_cpu_dying+0x1d0/0x2a


  == Original Description ==

  
  When kernel test rebooted onto the 5.15.0-43-generic HWE kernel, no output appeared on the console after the EFI stub:

  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint A0
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint 92
  Checkpoint AD
  EFI stub: Booting Linux Kernel...
  EFI stub: ERROR: FIRMWARE BUG: kernel image not aligned on 64k boundary
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services...

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