Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Le 29/10/2020 à 22:07, Andreas Schwab a écrit : On Okt 01 2020, Christophe Leroy wrote: At the time being, an early hash table is set up when CONFIG_KASAN is selected. There is nothing wrong with setting such an early hash table all the time, even if it is not used. This is a statically all

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

>>> To be sure we are not in front of a long lasting bug, could you try >>> CONFIG_KASAN=y on v5.9 ? >> >> Indeed it started to fail somewhere between v5.6 and v5.7. >> >> v5.7 fails early with few messages on the console with reboot, v5.8 and >> later hang right at bootloader. >> >> I'm bisecting

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

>> To be sure we are not in front of a long lasting bug, could you try >> CONFIG_KASAN=y on v5.9 ? > > Indeed it started to fail somewhere between v5.6 and v5.7. > > v5.7 fails early with few messages on the console with reboot, v5.8 and > later hang right at bootloader. > > I'm bisecting now. (si

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Christophe Leroy writes: > To be sure we are not in front of a long lasting bug, could you try > CONFIG_KASAN=y on v5.9 ? Indeed it started to fail somewhere between v5.6 and v5.7. v5.7 fails early with few messages on the console with reboot, v5.8 and later hang right at bootloader. I'm bisec

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Le 03/11/2020 à 19:58, Serge Belyshev a écrit : Would you mind checking that with that patch reverted, you are able to boot a kernel built with CONFIG_KASAN ? I can reproduce the same problem on a powerbook G4, and no, CONFIG_KASAN=y kernel with that patch reverted also does not boot with th

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

> Would you mind checking that with that patch reverted, you are able to > boot a kernel built with CONFIG_KASAN ? I can reproduce the same problem on a powerbook G4, and no, CONFIG_KASAN=y kernel with that patch reverted also does not boot with the same symptom: white screen at the bootloader rig

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

On Nov 03 2020, Christophe Leroy wrote: > Would you mind checking that with that patch reverted, you are able to > boot a kernel built with CONFIG_KASAN ? That doesn't exist. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA A

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

On Nov 03 2020, Christophe Leroy wrote: > I tried again on QEMU with both pmac32_defconfig and your config, and it > boots. Isn't it quite naïve to think that qemu provides an adequate test environment for such lowlevel stuff? Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerpr

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Hi Andreas, Le 30/10/2020 à 14:11, Andreas Schwab a écrit : # # Automatically generated file; DO NOT EDIT. # Linux/powerpc 5.10.0-rc1 Kernel Configuration # I tried again on QEMU with both pmac32_defconfig and your config, and it boots. I really can't understand what the problem is, because t

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

# # Automatically generated file; DO NOT EDIT. # Linux/powerpc 5.10.0-rc1 Kernel Configuration # CONFIG_CC_VERSION_TEXT="gcc-4.9 (SUSE Linux) 4.9.3" CONFIG_CC_IS_GCC=y CONFIG_GCC_VERSION=40903 CONFIG_LD_VERSION=23501 CONFIG_CLANG_VERSION=0 CONFIG_CC_CAN_LINK=y CONFIG_CC_CAN_LINK_STATIC=y CONFIG

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Andreas Schwab a écrit : On Okt 30 2020, Michael Ellerman wrote: Andreas Schwab writes: On Okt 01 2020, Christophe Leroy wrote: At the time being, an early hash table is set up when CONFIG_KASAN is selected. There is nothing wrong with setting such an early hash table all the time, even

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

On Okt 30 2020, Michael Ellerman wrote: > Andreas Schwab writes: >> On Okt 01 2020, Christophe Leroy wrote: >> >>> At the time being, an early hash table is set up when >>> CONFIG_KASAN is selected. >>> >>> There is nothing wrong with setting such an early hash table >>> all the time, even if it

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

Andreas Schwab writes: > On Okt 01 2020, Christophe Leroy wrote: > >> At the time being, an early hash table is set up when >> CONFIG_KASAN is selected. >> >> There is nothing wrong with setting such an early hash table >> all the time, even if it is not used. This is a statically >> allocated 256

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

On Okt 01 2020, Christophe Leroy wrote: > At the time being, an early hash table is set up when > CONFIG_KASAN is selected. > > There is nothing wrong with setting such an early hash table > all the time, even if it is not used. This is a statically > allocated 256 kB table which lies in the init

Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

On Thu, 1 Oct 2020 15:35:38 + (UTC), Christophe Leroy wrote: > At the time being, an early hash table is set up when > CONFIG_KASAN is selected. > > There is nothing wrong with setting such an early hash table > all the time, even if it is not used. This is a statically > allocated 256 kB tabl

[PATCH] powerpc/32s: Setup the early hash table at all time.

At the time being, an early hash table is set up when CONFIG_KASAN is selected. There is nothing wrong with setting such an early hash table all the time, even if it is not used. This is a statically allocated 256 kB table which lies in the init data section. This makes the code simpler and may i