Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-17 Thread Sasha Levin
On 06/15/2014 11:01 PM, Hugh Dickins wrote: > On Fri, 6 Jun 2014, Sasha Levin wrote: >> > On 06/06/2014 02:49 PM, Kirill A. Shutemov wrote: >>> > > On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: > > >> > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones > > >> > wrote: >>>

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-16 Thread Kirill A. Shutemov
On Sun, Jun 15, 2014 at 08:01:27PM -0700, Hugh Dickins wrote: > On Fri, 6 Jun 2014, Sasha Levin wrote: > > On 06/06/2014 02:49 PM, Kirill A. Shutemov wrote: > > > On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: > > >> > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > > >>> > >

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-15 Thread Hugh Dickins
On Fri, 6 Jun 2014, Sasha Levin wrote: > On 06/06/2014 02:49 PM, Kirill A. Shutemov wrote: > > On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: > >> > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > >>> > > > >>> > > RIP: 0010:[] [] > >>> > > copy_page_rep+0x5/0x10 > >> > >

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Sasha Levin
On 06/06/2014 02:49 PM, Kirill A. Shutemov wrote: > On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: >> > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: >>> > > >>> > > RIP: 0010:[] [] >>> > > copy_page_rep+0x5/0x10 >> > >> > Ok, it's the first iteration of "rep movsq" (%rcx

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Kirill A. Shutemov
On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > > > > RIP: 0010:[] [] copy_page_rep+0x5/0x10 > > Ok, it's the first iteration of "rep movsq" (%rcx is still 0x200) for > copying a page, and the pages are > > RSI: 880052

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Hugh Dickins
On Fri, 6 Jun 2014, Linus Torvalds wrote: > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > > > > RIP: 0010:[] [] copy_page_rep+0x5/0x10 > > Ok, it's the first iteration of "rep movsq" (%rcx is still 0x200) for > copying a page, and the pages are > > RSI: 880052766000 > RDI: 88

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Dave Jones
On Fri, Jun 06, 2014 at 11:26:14AM -0700, Linus Torvalds wrote: > On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > > > > RIP: 0010:[] [] copy_page_rep+0x5/0x10 > > Ok, it's the first iteration of "rep movsq" (%rcx is still 0x200) for > copying a page, and the pages are > > RSI: ff

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Linus Torvalds
On Fri, Jun 6, 2014 at 10:43 AM, Dave Jones wrote: > > RIP: 0010:[] [] copy_page_rep+0x5/0x10 Ok, it's the first iteration of "rep movsq" (%rcx is still 0x200) for copying a page, and the pages are RSI: 880052766000 RDI: 880014efe000 which both look like reasonable kernel addresses

Re: 3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Dave Jones
On Fri, Jun 06, 2014 at 01:43:17PM -0400, Dave Jones wrote: > Not much to go on here. It rebooted right after dumping this. > > RIP: 0010:[] [] copy_page_rep+0x5/0x10 > Call Trace: > [] ? do_huge_pmd_wp_page+0x5cb/0x850 > [] handle_mm_fault+0x1e0/0xc50 > [] ? kmem_cache_free+0x1c2/0x200

3.15-rc8 oops in copy_page_rep after page fault.

2014-06-06 Thread Dave Jones
Not much to go on here. It rebooted right after dumping this. Oops: [#1] PREEMPT SMP DEBUG_PAGEALLOC Modules linked in: fuse sctp tun hidp rfcomm llc2 af_key nfnetlink ipt_ULOG scsi_transport_iscsi bnep can_raw nfc caif_socket caif af_802154 ieee802154 phonet af_rxrpc can_bcm can pppoe pppo