Re: Amiga, serial and SYSRQ

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Paolo,

On 20/05/24 01:54, Paolo Pisati wrote:
On Sun, May 19, 2024 at 03:31:07PM +0200, Geert Uytterhoeven wrote:
Without TRACEPOINTS_ENABLED, you get:

     #ifdef TRACEPOINTS_ENABLED
     ...
     #else
     static inline void do_trace_initcall_start(initcall_t fn)
     {
             if (!initcall_debug)
                     return;
             trace_initcall_start_cb(&initcall_calltime, fn);
     }
     static inline void do_trace_initcall_finish(initcall_t fn, int ret)
     {
             if (!initcall_debug)
                     return;
             trace_initcall_finish_cb(&initcall_calltime, fn, ret);
     }
     #endif /* !TRACEPOINTS_ENABLED */

That second part should still work fine.
Ok, i appended initcall_debug, but i got the same exact output, i wonder if i'm
missing something else:

ABCDGHIJK
Linux version 6.6.30-amiga-00006-g809aa9a54cba (flag@amaterasu.local) (m68k-linux-gcc (GCC) 13.1.0, GNU ld (GNU Binutils) 2.40) #7 Sat May 18 19:55:35 CEST 2024
Saving 470 bytes of bootinfo
printk: console [debug0] enabled
printk: Too late to register bootconsole debug-1
Amiga hardware found: [A1200] VIDEO BLITTER AUDIO FLOPPY A1200_IDE KEYBOARD MOUSE SERIAL PARALLEL A2000_CLK CHIP_RAM PAULA LISA ALICE_PAL PCMCIA ZORRO
Zone ranges:
   DMA      [mem 0x0000000040000000-0x000004dfffffffff]
   Normal   empty
Movable zone start for each node
Early memory node ranges
   node   0: [mem 0x0000000040000000-0x000000004dffffff]
Initmem setup node 0 [mem 0x0000000040000000-0x000000004dffffff]
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: [0] 0
Kernel command line: root=/dev/sda4 debug=ser earlyprintk console=ttyS0,9600n8 initcall_debug

Odd - maybe ordering matters here? Ordinarily, it doesn't but I've been caught out with using wrong option separators before. So, if ',' isn't the correct token to split the console option, the kernel will stop parsing there and won't see your initcall_debug option.

I use that option all the time, but I have 'console=tty' instead of serial console.

Cheers,

    Michael

Dentry cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
Sorting __ex_table...
Built 1 zonelists, mobility grouping on.  Total pages: 56840
mem auto-init: stack:all(zero), heap alloc:off, heap free:off
Memory: 221284K/229376K available (3753K kernel code, 472K rwdata, 1184K rodata, 172K init, 149K bss, 8092K reserved, 0K cma-reserved)
SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
start_kernel::941
start_kernel::976
NR_IRQS: 32
clocksource: ciab: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 2694272661900 ns
start_kernel::990
start_kernel::994
start_kernel::998
start_kernel::1000
start_kernel::1006
start_kernel::1009

I'm using amiga_defconfig FWIW.




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