Messages in this thread Patch in this message | | | From | Chris Metcalf <> | Date | Thu, 29 Mar 2012 14:02:52 -0400 | Subject | [PATCH] arch/tile: avoid false corrupt frame warning in early boot |
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With lockstat we can end up trying to get a backtrace before "high_memory" is initialized, so don't worry about range testing if it is zero.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> --- arch/tile/kernel/process.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 4c1ac6e..3be7eb5 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -286,7 +286,7 @@ struct task_struct *validate_current(void) static struct task_struct corrupt = { .comm = "<corrupt>" }; struct task_struct *tsk = current; if (unlikely((unsigned long)tsk < PAGE_OFFSET || - (void *)tsk > high_memory || + (high_memory && (void *)tsk > high_memory) || ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) { pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer); tsk = &corrupt; -- 1.6.5.2
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