Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Thu, Dec 28, 2017 at 5:18 PM, Andrey Ryabinin wrote: > > > On 12/28/2017 02:54 PM, Dmitry Vyukov wrote: >> On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: >>> On Wed, 27 Dec 2017, Dmitry Vyukov wrote: On Wed, Dec 27, 2017 at 7:05 PM,

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Thu, Dec 28, 2017 at 5:18 PM, Andrey Ryabinin wrote: > > > On 12/28/2017 02:54 PM, Dmitry Vyukov wrote: >> On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: >>> On Wed, 27 Dec 2017, Dmitry Vyukov wrote: On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: > So this

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On 12/28/2017 02:54 PM, Dmitry Vyukov wrote: > On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: >> On Wed, 27 Dec 2017, Dmitry Vyukov wrote: >>> On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: So this dies simply because

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On 12/28/2017 02:54 PM, Dmitry Vyukov wrote: > On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: >> On Wed, 27 Dec 2017, Dmitry Vyukov wrote: >>> On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: So this dies simply because kasan_populate_shadow() runs out of memory and

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On 12/27/2017 09:12 PM, Dmitry Vyukov wrote: >> >> Not really a problem caused by the patch above, it's merily exposing a code >> path which relies blindly on "enough memory available" assumptions. >> >> Throwing more memory at the VM makes the problem go away... > > Hi Thomas, > > We just need

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On 12/27/2017 09:12 PM, Dmitry Vyukov wrote: >> >> Not really a problem caused by the patch above, it's merily exposing a code >> path which relies blindly on "enough memory available" assumptions. >> >> Throwing more memory at the VM makes the problem go away... > > Hi Thomas, > > We just need

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: > On Wed, 27 Dec 2017, Dmitry Vyukov wrote: >> On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: >> > So this dies simply because kasan_populate_shadow() runs out of memory and >> > has no

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Thu, Dec 28, 2017 at 12:51 PM, Thomas Gleixner wrote: > On Wed, 27 Dec 2017, Dmitry Vyukov wrote: >> On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: >> > So this dies simply because kasan_populate_shadow() runs out of memory and >> > has no sanity check whatsoever. >> > >> > static

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Wed, 27 Dec 2017, Dmitry Vyukov wrote: > On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: > > So this dies simply because kasan_populate_shadow() runs out of memory and > > has no sanity check whatsoever. > > > > static __init void *early_alloc(size_t size, int nid)

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Wed, 27 Dec 2017, Dmitry Vyukov wrote: > On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: > > So this dies simply because kasan_populate_shadow() runs out of memory and > > has no sanity check whatsoever. > > > > static __init void *early_alloc(size_t size, int nid) > > { > >

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: > On Tue, 26 Dec 2017, kernel test robot wrote: > >> >> FYI, we noticed the following commit (built with gcc-6): >> >> commit: 10043e02db7f8a4161f76434931051e7d797a5f6 ("x86/cpu_entry_area: Add >> debugstore entries to

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Wed, Dec 27, 2017 at 7:05 PM, Thomas Gleixner wrote: > On Tue, 26 Dec 2017, kernel test robot wrote: > >> >> FYI, we noticed the following commit (built with gcc-6): >> >> commit: 10043e02db7f8a4161f76434931051e7d797a5f6 ("x86/cpu_entry_area: Add >> debugstore entries to cpu_entry_area") >>

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Tue, 26 Dec 2017, kernel test robot wrote: > > FYI, we noticed the following commit (built with gcc-6): > > commit: 10043e02db7f8a4161f76434931051e7d797a5f6 ("x86/cpu_entry_area: Add > debugstore entries to cpu_entry_area") > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git

Re: [lkp-robot] [x86/cpu_entry_area] 10043e02db: kernel_BUG_at_arch/x86/mm/physaddr.c

On Tue, 26 Dec 2017, kernel test robot wrote: > > FYI, we noticed the following commit (built with gcc-6): > > commit: 10043e02db7f8a4161f76434931051e7d797a5f6 ("x86/cpu_entry_area: Add > debugstore entries to cpu_entry_area") > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git