diff options
| author | Hugh Dickins <hugh@veritas.com> | 2009-01-06 14:40:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:08 -0800 |
| commit | 1e9e63650d6cb88e6d6d2ca6cc3ee276c26de4a3 (patch) | |
| tree | 2fd95051128ef2ebfaad421ee919dab9e25459b2 /mm | |
| parent | d936cf9b39b06c8d2e0d7fb5e7b4f176e18dec69 (diff) | |
| download | lwn-1e9e63650d6cb88e6d6d2ca6cc3ee276c26de4a3.tar.gz lwn-1e9e63650d6cb88e6d6d2ca6cc3ee276c26de4a3.zip | |
badpage: KERN_ALERT BUG instead of KERN_EMERG
bad_page() and rmap Eeek messages have said KERN_EMERG for a few years,
which I've followed in print_bad_pte(). These are serious system errors,
on a par with BUGs, but they're not quite emergencies, and we do our best
to carry on: say KERN_ALERT "BUG: " like the x86 oops does.
And remove the "Trying to fix it up, but a reboot is needed" line: it's
not untrue, but I hope the KERN_ALERT "BUG: " conveys as much.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 15 | ||||
| -rw-r--r-- | mm/page_alloc.c | 9 |
2 files changed, 12 insertions, 12 deletions
diff --git a/mm/memory.c b/mm/memory.c index b12888c1b4e3..db68af8e0bc4 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -397,8 +397,8 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, return; } if (nr_unshown) { - printk(KERN_EMERG - "Bad page map: %lu messages suppressed\n", + printk(KERN_ALERT + "BUG: Bad page map: %lu messages suppressed\n", nr_unshown); nr_unshown = 0; } @@ -410,26 +410,27 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, mapping = vma->vm_file ? vma->vm_file->f_mapping : NULL; index = linear_page_index(vma, addr); - printk(KERN_EMERG "Bad page map in process %s pte:%08llx pmd:%08llx\n", + printk(KERN_ALERT + "BUG: Bad page map in process %s pte:%08llx pmd:%08llx\n", current->comm, (long long)pte_val(pte), (long long)pmd_val(*pmd)); if (page) { - printk(KERN_EMERG + printk(KERN_ALERT "page:%p flags:%p count:%d mapcount:%d mapping:%p index:%lx\n", page, (void *)page->flags, page_count(page), page_mapcount(page), page->mapping, page->index); } - printk(KERN_EMERG + printk(KERN_ALERT "addr:%p vm_flags:%08lx anon_vma:%p mapping:%p index:%lx\n", (void *)addr, vma->vm_flags, vma->anon_vma, mapping, index); /* * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y */ if (vma->vm_ops) - print_symbol(KERN_EMERG "vma->vm_ops->fault: %s\n", + print_symbol(KERN_ALERT "vma->vm_ops->fault: %s\n", (unsigned long)vma->vm_ops->fault); if (vma->vm_file && vma->vm_file->f_op) - print_symbol(KERN_EMERG "vma->vm_file->f_op->mmap: %s\n", + print_symbol(KERN_ALERT "vma->vm_file->f_op->mmap: %s\n", (unsigned long)vma->vm_file->f_op->mmap); dump_stack(); add_taint(TAINT_BAD_PAGE); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d1a80f652c6f..d531e8ef9984 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -237,8 +237,8 @@ static void bad_page(struct page *page) goto out; } if (nr_unshown) { - printk(KERN_EMERG - "Bad page state: %lu messages suppressed\n", + printk(KERN_ALERT + "BUG: Bad page state: %lu messages suppressed\n", nr_unshown); nr_unshown = 0; } @@ -247,13 +247,12 @@ static void bad_page(struct page *page) if (nr_shown++ == 0) resume = jiffies + 60 * HZ; - printk(KERN_EMERG "Bad page state in process %s pfn:%05lx\n", + printk(KERN_ALERT "BUG: Bad page state in process %s pfn:%05lx\n", current->comm, page_to_pfn(page)); - printk(KERN_EMERG + printk(KERN_ALERT "page:%p flags:%p count:%d mapcount:%d mapping:%p index:%lx\n", page, (void *)page->flags, page_count(page), page_mapcount(page), page->mapping, page->index); - printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n"); dump_stack(); out: |