* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... [not found] ` <443F8EB1.30803@netwinder.org> @ 2006-04-26 18:38 ` Woody Suwalski 2006-04-26 20:09 ` Russell King 0 siblings, 1 reply; 8+ messages in thread From: Woody Suwalski @ 2006-04-26 18:38 UTC (permalink / raw) To: Martin Michlmayr, rmk; +Cc: Ralph Siemsen, linux-fbdev-devel, debian-arm >>> I just upgraded my Netwinder from 2.4.27 to 2.6.15 and the framebuffer no longer works. Console works but when I start X.org I first get a corrupted screen and a little bit later the whole machine hangs. There's no panic or any information on the serial console. <<< This problem appears only on Cyber2010 chips (Netwinders with Cyber2000 work OK) The crash issue on 2010 can be solved by disabling burst mode on the Cyberpro 2010 (graphic register 0x30, EXT_BUS_CTL_PCIBURST_WRITE=0). It is enabled in the kernel driver by default now. However, I can see in the cyber2000fb.c file that the 2010 is also used on Shark architecture. Martin, Russell, Can you verify if the current 2.6.1x kernel + X 6.9 works OK on SHARK machine??? I do not have any of them here to test... Basically we need to establish, if this fix is needed just for Netwinders with CyberPro 2010 (here tested on machine with 1M VRAM in 32-bit mode, but Martin seems to have problem on 2M VRAM Netwinder?) or all machines with CyberPro 2010. Thanks, Woody -- Xandros Corporation Simple. Powerful. Linux. Visit us at http://www.xandros.com ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-26 18:38 ` 2.6.16-rc3 + Xorg 6.9.0 - works for me Woody Suwalski @ 2006-04-26 20:09 ` Russell King 2006-04-26 20:15 ` Woody Suwalski 0 siblings, 1 reply; 8+ messages in thread From: Russell King @ 2006-04-26 20:09 UTC (permalink / raw) To: Woody Suwalski Cc: Martin Michlmayr, Ralph Siemsen, linux-fbdev-devel, debian-arm On Wed, Apr 26, 2006 at 02:38:34PM -0400, Woody Suwalski wrote: > >>> > I just upgraded my Netwinder from 2.4.27 to 2.6.15 and the framebuffer > no longer works. Console works but when I start X.org I first get a > corrupted screen and a little bit later the whole machine hangs. > There's no panic or any information on the serial console. > <<< > > This problem appears only on Cyber2010 chips (Netwinders with Cyber2000 > work OK) > > The crash issue on 2010 can be solved by disabling burst mode on the > Cyberpro 2010 (graphic register 0x30, EXT_BUS_CTL_PCIBURST_WRITE=0). It > is enabled in the kernel driver by default now. Exactly the same code exists in the 2.4.21-rmk kernel (just diff'd the two drivers), so I don't understand why hasn't the problem been reported against 2.4 kernels. > Martin, Russell, > Can you verify if the current 2.6.1x kernel + X 6.9 works OK on SHARK > machine??? I do not have any of them here to test... I don't have Shark hardware either. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-26 20:09 ` Russell King @ 2006-04-26 20:15 ` Woody Suwalski 2006-04-27 11:48 ` Martin Michlmayr 0 siblings, 1 reply; 8+ messages in thread From: Woody Suwalski @ 2006-04-26 20:15 UTC (permalink / raw) To: Russell King Cc: Martin Michlmayr, Ralph Siemsen, linux-fbdev-devel, debian-arm Russell King wrote: > On Wed, Apr 26, 2006 at 02:38:34PM -0400, Woody Suwalski wrote: >> I just upgraded my Netwinder from 2.4.27 to 2.6.15 and the framebuffer >> no longer works. Console works but when I start X.org I first get a >> corrupted screen and a little bit later the whole machine hangs. >> There's no panic or any information on the serial console. >> <<< >> >> This problem appears only on Cyber2010 chips (Netwinders with Cyber2000 >> work OK) >> >> The crash issue on 2010 can be solved by disabling burst mode on the >> Cyberpro 2010 (graphic register 0x30, EXT_BUS_CTL_PCIBURST_WRITE=0). It >> is enabled in the kernel driver by default now. > > Exactly the same code exists in the 2.4.21-rmk kernel (just diff'd the > two drivers), so I don't understand why hasn't the problem been reported > against 2.4 kernels. Yes, but the problem may be caused by faster/slower/smarter... driving of PCI bus e.t.c... It just happens to trigger now the right noise level... > >> Martin, Russell, >> Can you verify if the current 2.6.1x kernel + X 6.9 works OK on SHARK >> machine??? I do not have any of them here to test... > > I don't have Shark hardware either. > Well, maybe Martin or Wookey can find one... Woody -- Xandros Corporation Simple. Powerful. Linux. Visit us at http://www.xandros.com ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-26 20:15 ` Woody Suwalski @ 2006-04-27 11:48 ` Martin Michlmayr 2006-04-27 11:53 ` Russell King 0 siblings, 1 reply; 8+ messages in thread From: Martin Michlmayr @ 2006-04-27 11:48 UTC (permalink / raw) To: Woody Suwalski; +Cc: Russell King, Ralph Siemsen, linux-fbdev-devel, debian-arm * Woody Suwalski <woodys@xandros.com> [2006-04-26 16:15]: > >>Can you verify if the current 2.6.1x kernel + X 6.9 works OK on SHARK > >>machine??? I do not have any of them here to test... > > > >I don't have Shark hardware either. > > > Well, maybe Martin or Wookey can find one... I have no Shark, but I can confirm that 2.4 works on my Netwinder while 2.6 doesn't. -- Martin Michlmayr http://www.cyrius.com/ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-27 11:48 ` Martin Michlmayr @ 2006-04-27 11:53 ` Russell King 2006-04-27 11:59 ` Martin Michlmayr 2006-04-27 12:23 ` Ralph Siemsen 0 siblings, 2 replies; 8+ messages in thread From: Russell King @ 2006-04-27 11:53 UTC (permalink / raw) To: Martin Michlmayr Cc: Woody Suwalski, Ralph Siemsen, linux-fbdev-devel, debian-arm On Thu, Apr 27, 2006 at 01:48:17PM +0200, Martin Michlmayr wrote: > * Woody Suwalski <woodys@xandros.com> [2006-04-26 16:15]: > > >>Can you verify if the current 2.6.1x kernel + X 6.9 works OK on SHARK > > >>machine??? I do not have any of them here to test... > > > > > >I don't have Shark hardware either. > > > > > Well, maybe Martin or Wookey can find one... > > I have no Shark, but I can confirm that 2.4 works on my Netwinder > while 2.6 doesn't. And under 2.6, does clearing this burst bit solve your problem? -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-27 11:53 ` Russell King @ 2006-04-27 11:59 ` Martin Michlmayr 2006-04-27 12:23 ` Ralph Siemsen 1 sibling, 0 replies; 8+ messages in thread From: Martin Michlmayr @ 2006-04-27 11:59 UTC (permalink / raw) To: Russell King; +Cc: Woody Suwalski, Ralph Siemsen, linux-fbdev-devel, debian-arm * Russell King <rmk@arm.linux.org.uk> [2006-04-27 12:53]: > > I have no Shark, but I can confirm that 2.4 works on my Netwinder > > while 2.6 doesn't. > > And under 2.6, does clearing this burst bit solve your problem? I don't have access to my machine at the moment, but Ralph reproduced it on his. -- Martin Michlmayr http://www.cyrius.com/ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-27 11:53 ` Russell King 2006-04-27 11:59 ` Martin Michlmayr @ 2006-04-27 12:23 ` Ralph Siemsen 2006-04-27 12:32 ` Woody Suwalski 1 sibling, 1 reply; 8+ messages in thread From: Ralph Siemsen @ 2006-04-27 12:23 UTC (permalink / raw) To: Russell King Cc: Martin Michlmayr, Woody Suwalski, linux-fbdev-devel, debian-arm Russell King wrote: > And under 2.6, does clearing this burst bit solve your problem? Yes, I have confirmed this behaviour. Clearing the burst flag makes the 2010 work for me. I tried all other sorts of changes, like going back to the "OLD_PLL" code and similar, but none had any effect, except for the burst flag. RMK, its worth noting that "2.4" in the previous conversation was referring to 2.4.19-rmk7, so that may explain why it was working there. So is it a 2010 bug? Seems unlikely... -R PS. I am still seeing X crash after a few hours running x11perf, now with both 2.4 and 2.6 framebuffers. Its easily reproduced, but without any debugging symbols in the X binary, I'm not sure how useful a gdb backtrace would be... ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: 2.6.16-rc3 + Xorg 6.9.0 - works for me... 2006-04-27 12:23 ` Ralph Siemsen @ 2006-04-27 12:32 ` Woody Suwalski 0 siblings, 0 replies; 8+ messages in thread From: Woody Suwalski @ 2006-04-27 12:32 UTC (permalink / raw) To: Ralph Siemsen Cc: Russell King, Martin Michlmayr, linux-fbdev-devel, debian-arm Ralph Siemsen wrote: > Russell King wrote: > >> And under 2.6, does clearing this burst bit solve your problem? > > Yes, I have confirmed this behaviour. Clearing the burst flag makes > the 2010 work for me. I tried all other sorts of changes, like going > back to the "OLD_PLL" code and similar, but none had any effect, > except for the burst flag. > > RMK, its worth noting that "2.4" in the previous conversation was > referring to 2.4.19-rmk7, so that may explain why it was working there. > > So is it a 2010 bug? Seems unlikely... > > -R > > PS. I am still seeing X crash after a few hours running x11perf, now > with both 2.4 and 2.6 framebuffers. Its easily reproduced, but > without any debugging symbols in the X binary, I'm not sure how useful > a gdb backtrace would be... > My Netwinder gateway (Cyber 2000) running 2.6.11 and old Debian 4.3.0.dfsg.1-14sarge1 XFree is uptime'd for months... With CPU usage sometimes very heavy.... Did not try the same on new X7.0. OTOH, x11perf may be more demanding then plain usage... Woody ^ permalink raw reply [flat|nested] 8+ messages in thread
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[not found] ` <443F8EB1.30803@netwinder.org>
2006-04-26 18:38 ` 2.6.16-rc3 + Xorg 6.9.0 - works for me Woody Suwalski
2006-04-26 20:09 ` Russell King
2006-04-26 20:15 ` Woody Suwalski
2006-04-27 11:48 ` Martin Michlmayr
2006-04-27 11:53 ` Russell King
2006-04-27 11:59 ` Martin Michlmayr
2006-04-27 12:23 ` Ralph Siemsen
2006-04-27 12:32 ` Woody Suwalski
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