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ARM: Disable outer cache before kexec call -V3

Andrea Paterniani linux-arm-kernel 1 version New

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Cover letter [patch 0/2] ARM: Disable outer cache before kexec call -V3

Hi,
I have applied your patches to kernel 2.6.35-rc4 running on my
beagleboard.
I'm using kexec-tools-2.0.1.

My u-boot bootargs is:

     console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3

rootwait ip=192.168.2.13::255.255.255.0

To restart the system I type:

Quoted 2 lines

sync
kexec -l /boot/zImage --append="console=ttyS2,115200n8

root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait
ip=192.168.2.13::255.255.255.0"

Quoted 1 line

kexec -e

Not every time the system restart.
In some cases no output on the console after the following:
Bye!
Uncompressing Linux... done, booting the kernel.

Any idea?

Regards,
Andrea

Il 05/07/2010 13.52, Thomas Gleixner ha scritto:

Quoted 25 lines

The following patch series addresses the problem that the kexec code does not disable the outer cache before disabling the inner cache and jumping into the new kernel. This results in random crashes of the new kernel.

Changes since version 2:

- Use CLEAN_INV_WAY in l2x0_flush_all according to Catalin

- Rename outer_cache_disable() to outer_disable()

- Added a BUG_ON() when l2x0_inv_all() is called with L2 enabled.

Thanks,

tglx

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