* Re: WARNING in md_ioctl [not found] <000000000000a52337056b065fb3@google.com> @ 2019-11-25 22:37 ` syzbot 2019-11-26 8:42 ` Daniel Vetter 0 siblings, 1 reply; 3+ messages in thread From: syzbot @ 2019-11-25 22:37 UTC (permalink / raw) To: airlied, chris, dri-devel, intel-gfx, jani.nikula, joonas.lahtinen, linux-kernel, linux-raid, rafael.antognolli, rodrigo.vivi, shli, syzkaller-bugs syzbot has bisected this bug to: commit 4b6ce6810a5dc0af387a238e8c852e0d3822381f Author: Rafael Antognolli <rafael.antognolli@intel.com> Date: Mon Feb 5 23:33:30 2018 +0000 drm/i915/cnl: WaPipeControlBefore3DStateSamplePattern bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13aeb522e00000 start commit: c61a56ab Merge branch 'x86-urgent-for-linus' of git://git... git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=106eb522e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17aeb522e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=4013180e7c7a9ff9 dashboard link: https://syzkaller.appspot.com/bug?extid=1e46a0864c1a6e9bd3d8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16bca207800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14819a47800000 Reported-by: syzbot+1e46a0864c1a6e9bd3d8@syzkaller.appspotmail.com Fixes: 4b6ce6810a5d ("drm/i915/cnl: WaPipeControlBefore3DStateSamplePattern") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: WARNING in md_ioctl 2019-11-25 22:37 ` WARNING in md_ioctl syzbot @ 2019-11-26 8:42 ` Daniel Vetter 2019-11-26 8:42 ` [Intel-gfx] " Daniel Vetter 0 siblings, 1 reply; 3+ messages in thread From: Daniel Vetter @ 2019-11-26 8:42 UTC (permalink / raw) To: syzbot Cc: airlied, intel-gfx, syzkaller-bugs, linux-kernel, linux-raid, dri-devel, shli On Mon, Nov 25, 2019 at 02:37:01PM -0800, syzbot wrote: > syzbot has bisected this bug to: > > commit 4b6ce6810a5dc0af387a238e8c852e0d3822381f > Author: Rafael Antognolli <rafael.antognolli@intel.com> > Date: Mon Feb 5 23:33:30 2018 +0000 > > drm/i915/cnl: WaPipeControlBefore3DStateSamplePattern This seems very unlikely, the reproducer doesn't open a drm device, and I'd be surprised if your gcd instances have an actual i915 device in them (but I can't check because boot log isn't provided, didn't find it on the dashboard either). Since i915 is built-in I suspect this simply moved something else in the kernel image around which provokes the bug. -Daniel > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13aeb522e00000 > start commit: c61a56ab Merge branch 'x86-urgent-for-linus' of git://git... > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=106eb522e00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=17aeb522e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4013180e7c7a9ff9 > dashboard link: https://syzkaller.appspot.com/bug?extid=1e46a0864c1a6e9bd3d8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16bca207800000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14819a47800000 > > Reported-by: syzbot+1e46a0864c1a6e9bd3d8@syzkaller.appspotmail.com > Fixes: 4b6ce6810a5d ("drm/i915/cnl: > WaPipeControlBefore3DStateSamplePattern") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Intel-gfx] WARNING in md_ioctl 2019-11-26 8:42 ` Daniel Vetter @ 2019-11-26 8:42 ` Daniel Vetter 0 siblings, 0 replies; 3+ messages in thread From: Daniel Vetter @ 2019-11-26 8:42 UTC (permalink / raw) To: syzbot Cc: airlied, intel-gfx, syzkaller-bugs, linux-kernel, linux-raid, dri-devel, shli On Mon, Nov 25, 2019 at 02:37:01PM -0800, syzbot wrote: > syzbot has bisected this bug to: > > commit 4b6ce6810a5dc0af387a238e8c852e0d3822381f > Author: Rafael Antognolli <rafael.antognolli@intel.com> > Date: Mon Feb 5 23:33:30 2018 +0000 > > drm/i915/cnl: WaPipeControlBefore3DStateSamplePattern This seems very unlikely, the reproducer doesn't open a drm device, and I'd be surprised if your gcd instances have an actual i915 device in them (but I can't check because boot log isn't provided, didn't find it on the dashboard either). Since i915 is built-in I suspect this simply moved something else in the kernel image around which provokes the bug. -Daniel > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13aeb522e00000 > start commit: c61a56ab Merge branch 'x86-urgent-for-linus' of git://git... > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=106eb522e00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=17aeb522e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4013180e7c7a9ff9 > dashboard link: https://syzkaller.appspot.com/bug?extid=1e46a0864c1a6e9bd3d8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16bca207800000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14819a47800000 > > Reported-by: syzbot+1e46a0864c1a6e9bd3d8@syzkaller.appspotmail.com > Fixes: 4b6ce6810a5d ("drm/i915/cnl: > WaPipeControlBefore3DStateSamplePattern") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-11-25 22:37 ` WARNING in md_ioctl syzbot
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2019-11-26 8:42 ` [Intel-gfx] " Daniel Vetter
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