* [parisc-linux] not freeing initmem?
@ 2002-03-06 15:19 Ralf Hildebrandt
2002-03-06 15:24 ` Helge Deller
2002-03-06 15:27 ` Ralf Hildebrandt
0 siblings, 2 replies; 4+ messages in thread
From: Ralf Hildebrandt @ 2002-03-06 15:19 UTC (permalink / raw)
To: parisc-linux
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [parisc-linux] not freeing initmem?
2002-03-06 15:19 [parisc-linux] not freeing initmem? Ralf Hildebrandt
@ 2002-03-06 15:24 ` Helge Deller
2002-03-06 16:45 ` Alan Cox
2002-03-06 15:27 ` Ralf Hildebrandt
1 sibling, 1 reply; 4+ messages in thread
From: Helge Deller @ 2002-03-06 15:24 UTC (permalink / raw)
To: Ralf Hildebrandt, parisc-linux
There is still one or more __init 's too much somewhere.
If we would free the memory without fixing/finding this place first,
the kernel will crash.
Helge
On Wednesday 06 March 2002 16:19, Ralf Hildebrandt wrote:
> From my dmesg output of the recent 2.4.18-pa3:
>
> ...
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> NOT FREEING INITMEM (351k)
> Adding Swap: 124800k swap-space (priority -1)
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,3), internal journal
> ...
>
> What does that mean? Why is the memory not freed on PA-RISC, but freed
> on x86?
>
> On my x86 box:
>
> ...
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: 224k freed
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,2), internal journal
> Real Time Clock Driver v1.10e
> ...
--
Helge Deller
SAP AG - LinuxLab and Unix Platforms
email: helge.deller@sap.com
Phone: +49 6227 7 - 67783
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [parisc-linux] not freeing initmem?
2002-03-06 15:24 ` Helge Deller
@ 2002-03-06 16:45 ` Alan Cox
0 siblings, 0 replies; 4+ messages in thread
From: Alan Cox @ 2002-03-06 16:45 UTC (permalink / raw)
To: Helge Deller; +Cc: Ralf Hildebrandt, parisc-linux
> There is still one or more __init 's too much somewhere.
> If we would free the memory without fixing/finding this place first,
> the kernel will crash.
Disable interrupts, memset all the freed pages to an invalid instruction in
parisc asm at the point you free the init pages, then re-enable ints and
the traceback should give you a direct stack trace to the offender
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [parisc-linux] not freeing initmem?
2002-03-06 15:19 [parisc-linux] not freeing initmem? Ralf Hildebrandt
2002-03-06 15:24 ` Helge Deller
@ 2002-03-06 15:27 ` Ralf Hildebrandt
1 sibling, 0 replies; 4+ messages in thread
From: Ralf Hildebrandt @ 2002-03-06 15:27 UTC (permalink / raw)
To: Ralf Hildebrandt; +Cc: parisc-linux
Am 06.03.2002 um 16:19:13 +0100 schrieb Ralf Hildebrandt folgendes:
> What does that mean? Why is the memory not freed on PA-RISC, but freed
> on x86?
OK, I grepped for that string and found the infamous FIXME:
/* FIXME: */
printk(KERN_INFO "NOT FREEING INITMEM (%dk)\n",
(&__init_end - &__init_begin) >> 10);
return;
OTOH, why does the code below that not work for PA-RISC?
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2002-03-06 16:30 UTC | newest]
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2002-03-06 15:19 [parisc-linux] not freeing initmem? Ralf Hildebrandt
2002-03-06 15:24 ` Helge Deller
2002-03-06 16:45 ` Alan Cox
2002-03-06 15:27 ` Ralf Hildebrandt
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