Commit Graph

114 Commits

Author SHA1 Message Date
93e83f52e8 Add busybox patch to see debug lines: initrd sh ok
The switch_root command seems to hang in the execv() syscall.
2024-07-03 13:43:41 +02:00
109dea5b4e Enable kernel and busybox debug
Continues to hang in switch_root and no luck trying to send a magic
sysrq via serial port.
2024-07-01 18:00:54 +02:00
917cbf3439 Revert to upstream busybox 2024-07-01 14:53:08 +02:00
65c7eca2c8 Fix OpenSBI configuration for newer versions
OpenSBI 1.3 an newer require the heap_size to be specified in the
sbi_platform structure, othewise the default 0 value causes a hangg at
the start. I found the problem after bisecting OpenSBI:

  # Bisect opensbi
  version = src.shortRev;
  src = builtins.fetchGit {
    url = "file:///home/Computational/rarias/riscv/opensbi";
    #rev = "908be1b85c8ff0695ea226fbbf0ff24a779cdece"; #good
    #rev = "6bc02dede86c47f87e65293b7099e9caf3b22c29"; #good
    #rev = "bbff53fe3b6cdd3c9bc084d489640d7ee2a3f831"; #bad
    #rev = "8b99a7f7d8294be29e18a667d51e13755ed2c0e0"; #good
    #rev = "bdde2ecd27af1ac158669809f6658376fb5137ab"; #good
    #rev = "5cf9a540164a018a31a679578a27eb964af0340d"; #good
    #rev = "2a04f7037317c6c5b591b160a074c700de9b3378"; #bad
    rev = "40d36a6673131e36075b1df78af4d7ab92e8cc01"; #bad
  };
2024-07-01 13:28:32 +02:00
14f6528318 Use upstream u-boot and disable debug logs 2024-07-01 12:10:19 +02:00
67fedf4651 Remove unused dtb compilation in OpenSBI 2024-07-01 11:51:20 +02:00
a7e1a6a100 Go back to default gcc for the kernel 2024-07-01 11:30:12 +02:00
33b227f576 Hangs in swtich_root in stage1 2024-07-01 10:14:39 +02:00
2cefcef63d Make busybox static
Now the problem is inside the busybox binary:

[   43.028000] Run /init as init process
[   43.033300]   with arguments:
[   43.037260]     /init
[   43.040000]   with environment:
[   43.044180]     HOME=/
[   43.047600]     TERM=linux
[   43.078020] init[1]: unhandled signal 4 code 0x1 at 0x0000000000010660 in busybox[10000+22d000]
[   43.090080] CPU: 0 PID: 1 Comm: init Not tainted 6.1.62 #1-NixOS
[   43.097580] Hardware name: Barcelona Supercomputing Center - Lagarto Ox (NixOS) (DT)
[   43.106480] epc : 0000000000010660 ra : 0000000000000000 sp : 0000003fd5489db0
[   43.114780]  gp : ffffffff8197ea48 tp : 0000000000000000 t0 : 0000000000000000
[   43.123080]  t1 : 0000000000000000 t2 : 0000000000000000 s0 : 0000000000000000
[   43.131340]  s1 : 0000000000000000 a0 : 0000000000000000 a1 : 0000000000000000
[   43.139620]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000
[   43.147900]  a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000000000
[   43.156180]  s2 : 0000000000000000 s3 : 0000000000000000 s4 : 0000000000000000
[   43.164860]  s5 : 0000000000000000 s6 : 0000000000000000 s7 : 0000000000000000
[   43.173140]  s8 : 0000000000000000 s9 : 0000000000000000 s10: 0000000000000000
[   43.181420]  s11: 0000000000000000 t3 : 0000000000000000 t4 : 0000000000000000
[   43.189680]  t5 : 0000000000000000 t6 : 0000000000000000
[   43.196040] status: 0000000200004020 badaddr: 00000000034000ef cause: 0000000000000002
[   43.208240] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
[   43.216340] CPU: 0 PID: 1 Comm: init Not tainted 6.1.62 #1-NixOS
[   43.222940] Hardware name: Barcelona Supercomputing Center - Lagarto Ox (NixOS) (DT)
[   43.231100] Call Trace:
[   43.234000] [<ffffffff800070c4>] dump_backtrace+0x38/0x48
[   43.240140] [<ffffffff809f063c>] show_stack+0x50/0x68
[   43.245900] [<ffffffff809fd1f8>] dump_stack_lvl+0x60/0x84
[   43.252000] [<ffffffff809fd23c>] dump_stack+0x20/0x30
[   43.257740] [<ffffffff809f0918>] panic+0x160/0x390
[   43.263200] [<ffffffff80020184>] do_exit+0xa70/0xa78
[   43.268820] [<ffffffff800203a4>] do_group_exit+0x44/0xb0
[   43.274780] [<ffffffff80031eec>] get_signal+0x9b4/0xa00
[   43.280700] [<ffffffff80005ca0>] do_work_pending+0x18c/0x610
[   43.287020] [<ffffffff80003880>] resume_userspace_slow+0x10/0x14
[   43.293960] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 ]---
2024-06-28 15:08:53 +02:00
fc4b8126f6 Document memory layout 2024-06-28 10:39:10 +02:00
a8f3234031 Reached working U-Boot prompt
The serial compatible string must be "ns16550" to be recognized by
U-Boot.
2024-06-27 17:58:21 +02:00
72b4788888 Reached U-Boot console with FDT parsing error 2024-06-27 16:08:30 +02:00
1bfc32e91a Working OpenSBI 1.2 2024-06-27 11:29:15 +02:00
c8efa952f9 Add configuration for Lagarto Ox 2024-06-25 11:11:05 +02:00