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516949480d
linux/arch
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Paolo 'Blaisorblade' Giarrusso 516949480d [PATCH] uml: fix random segfaults at bootup 
Don't use printk() where "current_thread_info()" is crap.

Until when we switch to running on init_stack, current_thread_info() evaluates
to crap. Printk uses "current" at times (in detail, &current is evaluated with
CONFIG_DEBUG_SPINLOCK to check the spinlock owner task).

And this leads to random segmentation faults.

Exactly, what happens is that &current = *(current_thread_info()), i.e. round
down $esp and dereference the value. I.e. access the stack below $esp, which
causes SIGSEGV on a VM_GROWSDOWN vma (see arch/i386/mm/fault.c).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-29 09:48:15 -08:00
..
alpha [PATCH] arch/alpha/kernel/machvec_impl.h: C99 struct initializer 2005-12-15 10:04:31 -08:00
arm [ARM] 3210/1: add missing memory barrier helper for NPTL support 2005-12-19 22:20:51 +00:00
arm26 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
cris [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
frv [PATCH] FRV: Make the FRV arch work again 2005-11-28 14:42:23 -08:00
h8300 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
i386 [PATCH] Fix build with CONFIG_PCI_MMCONFIG 2005-12-20 10:41:57 -08:00
ia64 [IA64] Add __read_mostly support for IA64 2005-12-16 10:52:46 -08:00
m32r [PATCH] m32r: M3A-2170(Mappi-III) IDE support 2005-11-28 14:42:24 -08:00
m68k [PATCH] m68k: convert thread flags to use bit fields 2005-11-13 18:14:14 -08:00
m68knommu [PATCH] m68knommu: move some platform irq support out of irq.h 2005-11-07 08:00:47 -08:00
mips [PATCH] mips: setup_zero_pages count 1 2005-12-12 08:57:43 -08:00
parisc [PARISC] Remove unused variable in signal.c 2005-11-17 16:43:52 -05:00
powerpc powerpc: Fix i8259 cascade on pSeries with XICS interrupt controller 2005-12-22 21:55:37 +11:00
ppc Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge 2005-12-20 09:41:25 -08:00
s390 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh64 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sparc [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
sparc64 [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
um [PATCH] uml: fix random segfaults at bootup 2005-12-29 09:48:15 -08:00
v850 [PATCH] v850: use generic hardirq code 2005-11-15 08:59:20 -08:00
x86_64 [PATCH] Fix build with CONFIG_PCI_MMCONFIG 2005-12-20 10:41:57 -08:00
xtensa Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00