Messages in this thread | | | Subject | Re: [PATCH] powerpc/8xx: Map a second 8M text page at startup when needed. | From | Christophe Leroy <> | Date | Thu, 20 Dec 2018 09:50:03 +0100 |
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Le 20/12/2018 à 09:24, Christoph Hellwig a écrit : > On Thu, Dec 20, 2018 at 05:48:25AM +0000, Christophe Leroy wrote: >> Some debug setup like CONFIG_KASAN generate huge >> kernels with text size over the 8M limit. >> >> This patch maps a second 8M page when _einittext is over 8M. > > Do we also need a check to generate a useful warning if we ever overflow > the 16MB? >
I don't think any other platform does that (the 40x also maps 16Mb, book3s/601 maps 24Mb)
But why not, could do that in another patch.
Is there an easy way to get the link to fail when CONFIG_PIN_TLB_TEXT is set and _einittext is higher than 16Mb ?
Or should we just map up to 24Mb on the 8xx and consider we are on the safe side with that much ?
Christophe
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