Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 02:05:53AM -0700, Hugh Dickins wrote: > On Mon, 19 Jun 2017, Dave Jones wrote: > > > > I hacked up this harness to try and narrow it down more.. > > > > #!/bin/bash > > > > . scripts/taint.sh > > > > while [ 1 ]; > > do > > ./trinity -a64 -C1 -c mmap -N1

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 02:05:53AM -0700, Hugh Dickins wrote: > On Mon, 19 Jun 2017, Dave Jones wrote: > > > > I hacked up this harness to try and narrow it down more.. > > > > #!/bin/bash > > > > . scripts/taint.sh > > > > while [ 1 ]; > > do > > ./trinity -a64 -C1 -c mmap -N1

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 4:42 AM, Dave Jones wrote: > Almost shutdown, but not quite. Coincidentally, coverity just finished > the rc6 run, and barfed this up.. related ? > > *** CID 1412907: Control flow issues (DEADCODE) > /include/linux/mm.h: 2243 in vm_end_gap() >

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 4:42 AM, Dave Jones wrote: > Almost shutdown, but not quite. Coincidentally, coverity just finished > the rc6 run, and barfed this up.. related ? > > *** CID 1412907: Control flow issues (DEADCODE) > /include/linux/mm.h: 2243 in vm_end_gap() > 2237 > 2238 static

Re: Linux 4.12-rc6

On Mon, 19 Jun 2017, Dave Jones wrote: > > I hacked up this harness to try and narrow it down more.. > > #!/bin/bash > > . scripts/taint.sh > > while [ 1 ]; > do > ./trinity -a64 -C1 -c mmap -N1 --enable-fds=testfile > check_tainted > done Very helpful reproducer, thank you Dave: I tried

Re: Linux 4.12-rc6

On Mon, 19 Jun 2017, Dave Jones wrote: > > I hacked up this harness to try and narrow it down more.. > > #!/bin/bash > > . scripts/taint.sh > > while [ 1 ]; > do > ./trinity -a64 -C1 -c mmap -N1 --enable-fds=testfile > check_tainted > done Very helpful reproducer, thank you Dave: I tried

Re: Linux 4.12-rc6

On Mon, 19 Jun 2017, Hugh Dickins wrote: > On Tue, 20 Jun 2017, Linus Torvalds wrote: > > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > > Hugh Dickins (1): > > > > mm: larger stack guard gap, between vmas > > > > > > This seems to be buggered. ... > >

Re: Linux 4.12-rc6

On Mon, 19 Jun 2017, Hugh Dickins wrote: > On Tue, 20 Jun 2017, Linus Torvalds wrote: > > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > > Hugh Dickins (1): > > > > mm: larger stack guard gap, between vmas > > > > > > This seems to be buggered. ... > > > > So maybe that "goto

Re: Linux 4.12-rc6

On Mon, Jun 19, 2017 at 08:12:12PM -0700, Hugh Dickins wrote: > for Dave perhaps to try - but probably he's shut down now, so I'll > then grab a trinity, and see what luck I have with it. Almost shutdown, but not quite. Coincidentally, coverity just finished the rc6 run, and barfed this up..

Re: Linux 4.12-rc6

On Mon, Jun 19, 2017 at 08:12:12PM -0700, Hugh Dickins wrote: > for Dave perhaps to try - but probably he's shut down now, so I'll > then grab a trinity, and see what luck I have with it. Almost shutdown, but not quite. Coincidentally, coverity just finished the rc6 run, and barfed this up..

Re: Linux 4.12-rc6

On Tue, 20 Jun 2017, Linus Torvalds wrote: > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > Hugh Dickins (1): > > > mm: larger stack guard gap, between vmas > > > > This seems to be buggered. > > > > 002331 0396712307 0 2 kernel BUG at

Re: Linux 4.12-rc6

On Tue, 20 Jun 2017, Linus Torvalds wrote: > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > Hugh Dickins (1): > > > mm: larger stack guard gap, between vmas > > > > This seems to be buggered. > > > > 002331 0396712307 0 2 kernel BUG at mm/mmap.c:1963! > > 002332

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 10:32:00AM +0800, Linus Torvalds wrote: > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > Hugh Dickins (1): > > > mm: larger stack guard gap, between vmas > > > > This seems to be buggered. > > > > 002331 0396712307 0 2

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 10:32:00AM +0800, Linus Torvalds wrote: > On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > > Hugh Dickins (1): > > > mm: larger stack guard gap, between vmas > > > > This seems to be buggered. > > > > 002331 0396712307 0 2 kernel BUG at

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > Hugh Dickins (1): > > mm: larger stack guard gap, between vmas > > This seems to be buggered. > > 002331 0396712307 0 2 kernel BUG at mm/mmap.c:1963! > 002332 0396712414 0 4 invalid opcode: [#1]

Re: Linux 4.12-rc6

On Tue, Jun 20, 2017 at 8:26 AM, Dave Jones wrote: > > Hugh Dickins (1): > > mm: larger stack guard gap, between vmas > > This seems to be buggered. > > 002331 0396712307 0 2 kernel BUG at mm/mmap.c:1963! > 002332 0396712414 0 4 invalid opcode: [#1] SMP DEBUG_PAGEALLOC >

Re: Linux 4.12-rc6

On Mon, Jun 19, 2017 at 11:04:15PM +0800, Linus Torvalds wrote: > And things look fairly normal. Two thirds drivers (rdma stands out, > but there's also networking drivers, gpu, hid etc), with the rest > being the usual mixture of architecture updates (s390, mips, powerpc, > arm, xtemsa) and

Re: Linux 4.12-rc6

On Mon, Jun 19, 2017 at 11:04:15PM +0800, Linus Torvalds wrote: > And things look fairly normal. Two thirds drivers (rdma stands out, > but there's also networking drivers, gpu, hid etc), with the rest > being the usual mixture of architecture updates (s390, mips, powerpc, > arm, xtemsa) and

Linux 4.12-rc6

Krister Johansen (1): Fix an intermittent pr_emerg warning about lo becoming free. Krzysztof Kozlowski (1): PM / devfreq: exynos-ppmu: Staticize event list Laurent Pinchart (1): drm: dw-hdmi: Fix compilation breakage by selecting REGMAP_MMIO Linus Torvalds (1): Linux 4.1

Linux 4.12-rc6

Krister Johansen (1): Fix an intermittent pr_emerg warning about lo becoming free. Krzysztof Kozlowski (1): PM / devfreq: exynos-ppmu: Staticize event list Laurent Pinchart (1): drm: dw-hdmi: Fix compilation breakage by selecting REGMAP_MMIO Linus Torvalds (1): Linux 4.1