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| author | Michael Ellerman <mpe@ellerman.id.au> | 2015-03-30 08:38:09 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-04-10 12:02:48 +0200 |
| commit | 7e862d7e7d118e3becc5b495af10ca076f087180 (patch) | |
| tree | bea93c57723e1db0ba9015df85c85bf070c1daa7 /arch/powerpc/kernel/prom_init.c | |
| parent | powerpc: Replace mem_init_done with slab_is_available() (diff) | |
| download | linux-7e862d7e7d118e3becc5b495af10ca076f087180.tar.xz linux-7e862d7e7d118e3becc5b495af10ca076f087180.zip | |
powerpc: Reword the "returning from prom_init" message
We get way too many bug reports that say "the kernel is hung in
prom_init", which stems from the fact that the last piece of output
people see is "returning from prom_init".
The kernel is almost never hung in prom_init(), it's just that it's
crashed somewhere after prom_init() but prior to the console coming up.
The existing message should give a clue to that, ie. "returning from"
indicates that prom_init() has finished, but it doesn't seem to work.
Let's try something different.
This prints:
Quiescing Open Firmware ...
Booting Linux via __start() ...
Which hopefully makes it clear that prom_init() is not the problem, and
although __start() probably isn't either, it's at least the right place
to begin looking.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wistfully-Acked-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 1a85d8f96739..fd1fe4c37599 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -2898,7 +2898,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, * Call OF "quiesce" method to shut down pending DMA's from * devices etc... */ - prom_printf("Calling quiesce...\n"); + prom_printf("Quiescing Open Firmware ...\n"); call_prom("quiesce", 0, 0); /* @@ -2910,7 +2910,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, /* Don't print anything after quiesce under OPAL, it crashes OFW */ if (of_platform != PLATFORM_OPAL) { - prom_printf("returning from prom_init\n"); + prom_printf("Booting Linux via __start() ...\n"); prom_debug("->dt_header_start=0x%x\n", hdr); } |