On Wed, Oct 03, 2007 at 07:36:55PM +0200, Torsten Kaiser wrote: > On 10/3/07, Matt Mackall <[EMAIL PROTECTED]> wrote: > > On Wed, Oct 03, 2007 at 05:55:10PM +0200, Torsten Kaiser wrote: > > > This patch removes clear_refs_smap() from fs/proc/task_mmu.c by moving > > > its code to a new function. But during the move the main for-loop from > > > clear_refs_smap was changed: > > > > > > old: > > > for (vma = mm->mmap; vma; vma = vma->vm_next) > > > if (vma->vm_mm && !is_vm_hugetlb_page(vma)) > > > walk_page_range(vma->vm_mm, vma->vm_start, > > > vma->vm_end, > > > &clear_refs_walk, vma); > > > > > > new: > > > for (vma = mm->mmap; vma; vma = vma->vm_next) > > > if (!is_vm_hugetlb_page(vma)) > > > walk_page_range(mm, vma->vm_start, vma->vm_end, > > > &clear_refs_walk, vma); > > > > > > The walk_page_range() is no longer called on vma->vm_mm, but on mm > > > directly. > > > I don't know how this can kill the sata_sil24-driver, but at least it > > > looks suspicious. > > > > That code should be fine. Further, it's pretty unlikely that this code > > ever gets invoked. This whole interface was only recently added by > > Google folks and its usage is pretty obscure. > > > > Oh wait - you're _at_ Google, aren't you? Perhaps you're actually > > using clear_refs. > > No. I'm just using Google Mail.
Ahh, I see. Wasn't aware of the trademark dispute.. > Of note might be, that at the time of this error init has not been > started. I'm using a program from initramfs to start the RAID. > The initramfs was primarily build using the genkernel package from > gentoo, but I have removed some parts of it (kernel modules and some > other part I no longer remember) Then I really don't see how these patches can have anything to do with your problem. They only affect some currently obscure files in /proc and it's unlikely to have any impact at init time. It's more likely that there's some code alignment Heisenbug or you got a false negative somewhere in your bisection. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
