linux/arch/powerpc
Paul Mackerras dfbe0d3b6b [POWERPC] Fix boot failure on POWER6
Commit 473980a993 added a call to clear
the SLB shadow buffer before registering it.  Unfortunately this means
that we clear out the entries that slb_initialize has previously set in
there.  On POWER6, the hypervisor uses the SLB shadow buffer when doing
partition switches, and that means that after the next partition switch,
each non-boot CPU has no SLB entries to map the kernel text and data,
which causes it to crash.

This fixes it by reverting most of 473980a9 and instead clearing the
3rd entry explicitly in slb_initialize.  This fixes the problem that
473980a9 was trying to solve, but without breaking POWER6.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-01-15 17:30:58 +11:00
..
boot ibm_newemac: Cleanup/fix support for STACR register variants 2007-12-07 15:09:06 -05:00
configs Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge 2007-12-14 16:46:50 +11:00
kernel [POWERPC] Workaround for iommu page alignment 2008-01-15 15:39:59 +11:00
lib [POWERPC] rheap: Changes config mechanism 2007-10-16 17:09:21 -06:00
math-emu [POWERPC] Fix rounding bug in emulation for double float operating 2007-12-13 22:59:00 -06:00
mm [POWERPC] Fix boot failure on POWER6 2008-01-15 17:30:58 +11:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
platforms [POWERPC] Fix boot failure on POWER6 2008-01-15 17:30:58 +11:00
sysdev [POWRPC] CPM2: Eliminate section mismatch warning in cpm2_reset(). 2007-12-13 22:44:38 -06:00
xmon [POWERPC] fix showing xmon help 2007-07-22 21:30:58 +10:00
.gitignore [POWERPC] Add files build to .gitignore 2006-12-04 20:41:29 +11:00
Kconfig Fix boot problem with iSeries lacking hugepage support 2007-11-29 09:24:51 -08:00
Kconfig.debug [POWERPC] 4xx: Split early debug output and early boot console for 44x 2007-10-19 16:18:18 -05:00
Makefile [POWERPC] Add -mno-spe for ARCH=powerpc builds 2007-11-09 03:47:29 -06:00