Re: kern/50060: kernel crash with i915drmksm on Intel 965Q

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The following reply was made to PR kern/50060; it has been noted by GNATS.

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Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, 
	nisimura%netbsd.org@localhost
Subject: Re: kern/50060: kernel crash with i915drmksm on Intel 965Q
Date: Mon, 20 Jul 2015 13:09:34 +0900

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 >
 >
 > >> i915drmksm0 at pci0 dev 2 function 0: vendor 0x8086 product 0x2992
 (rev. 0x02)
 >> DRM error in i915_gmch_probe: failed to set up gmch
 >
 > Is this the real problem?
 
 No clue.  Somehow older NetBSD kernel says something about "i915drm" and has
 no trouble.
 
 > Can you send the stack trace?
 
 _atomic_swap_64() at netbsd:_atomic_swap_64+0x3
 bus_space_reservation_unmap1() at netbsd:bus_space_reservation_unmap1+0xc2
 bus_space_unmap() at netbsd:bus_space_unmap+0x38
 i915_driver_load() at netbsd:i915_driver_load+0x971
 drm_dev_register() at netbsd:drm_dev_register+0x87
 drm_pci_attach() at netbsd:drm_pci_attach+0x2d5
 i915drmkms_attach() at netbsd:i915drmkms_attach+0x92
 config_attach_loc() at netbsd:config_attach_loc+0x16e
 pci_probe_device() at netbsd:pci_probe_device+0x4ac
 pci_emumerate_bus() at netbsd:pci_enumerate_bus+0x168
 ...
 
 Toru Nishimura / ALKYL Technology
 
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 <div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
 ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
 -width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;paddi=
 ng-left:1ex"><br></blockquote></div><div class=3D"gmail_extra">&gt;&gt; i91=
 5drmksm0 at pci0 dev 2 function 0: vendor 0x8086 product 0x2992 (rev. 0x02)=
 </div><div class=3D"gmail_extra">&gt;&gt; DRM error in i915_gmch_probe: fai=
 led to set up gmch</div><div class=3D"gmail_extra">&gt;</div><div class=3D"=
 gmail_extra">&gt; Is this the real problem?</div><div class=3D"gmail_extra"=
 ><br></div><div class=3D"gmail_extra">No clue.=C2=A0 Somehow older NetBSD k=
 ernel says something about &quot;i915drm&quot; and has</div><div class=3D"g=
 mail_extra">no trouble.</div><div class=3D"gmail_extra"><br></div><div clas=
 s=3D"gmail_extra">&gt; Can you send the stack trace?</div><div class=3D"gma=
 il_extra"><br></div><div class=3D"gmail_extra">_atomic_swap_64() at netbsd:=
 _atomic_swap_64+0x3</div><div class=3D"gmail_extra">bus_space_reservation_u=
 nmap1() at netbsd:bus_space_reservation_unmap1+0xc2</div><div class=3D"gmai=
 l_extra">bus_space_unmap() at netbsd:bus_space_unmap+0x38</div><div class=
 =3D"gmail_extra">i915_driver_load() at netbsd:i915_driver_load+0x971</div><=
 div class=3D"gmail_extra">drm_dev_register() at netbsd:drm_dev_register+0x8=
 7</div><div class=3D"gmail_extra">drm_pci_attach() at netbsd:drm_pci_attach=
 +0x2d5</div><div class=3D"gmail_extra">i915drmkms_attach() at netbsd:i915dr=
 mkms_attach+0x92</div><div class=3D"gmail_extra">config_attach_loc() at net=
 bsd:config_attach_loc+0x16e</div><div class=3D"gmail_extra">pci_probe_devic=
 e() at netbsd:pci_probe_device+0x4ac</div><div class=3D"gmail_extra">pci_em=
 umerate_bus() at netbsd:pci_enumerate_bus+0x168</div><div class=3D"gmail_ex=
 tra">...</div><div class=3D"gmail_extra"><br></div><div class=3D"gmail_extr=
 a">Toru Nishimura / ALKYL Technology</div></div></div>
 
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