* reboot/kexec in 2.6.38 @ 2011-03-17 6:45 ` Pavel Machek 0 siblings, 0 replies; 23+ messages in thread From: Pavel Machek @ 2011-03-17 6:45 UTC (permalink / raw) To: linux-arm-kernel Hi! I got report that reboot/kexec does not work in recent kernels. I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe config issue? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 @ 2011-03-17 6:45 ` Pavel Machek 0 siblings, 0 replies; 23+ messages in thread From: Pavel Machek @ 2011-03-17 6:45 UTC (permalink / raw) To: rpurdie, lenz, kernel list, arminlitzel, Cyril Hrubis, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, eric.y.miao, utx, zaurus-devel, Marek Vasut Hi! I got report that reboot/kexec does not work in recent kernels. I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe config issue? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 2011-03-17 6:45 ` Pavel Machek @ 2011-03-17 10:58 ` Eric Miao -1 siblings, 0 replies; 23+ messages in thread From: Eric Miao @ 2011-03-17 10:58 UTC (permalink / raw) To: linux-arm-kernel On Thu, Mar 17, 2011 at 2:45 PM, Pavel Machek <pavel@ucw.cz> wrote: > Hi! > > I got report that ?reboot/kexec does not work in recent kernels. > > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe > config issue? I think it's config issue. Never heard of this. > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html > ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-03-17 10:58 ` Eric Miao 0 siblings, 0 replies; 23+ messages in thread From: Eric Miao @ 2011-03-17 10:58 UTC (permalink / raw) To: Pavel Machek Cc: rpurdie, lenz, kernel list, arminlitzel, Cyril Hrubis, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut On Thu, Mar 17, 2011 at 2:45 PM, Pavel Machek <pavel@ucw.cz> wrote: > Hi! > > I got report that reboot/kexec does not work in recent kernels. > > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe > config issue? I think it's config issue. Never heard of this. > Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html > ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 2011-03-17 10:58 ` Eric Miao @ 2011-03-17 12:58 ` Cyril Hrubis -1 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-03-17 12:58 UTC (permalink / raw) To: linux-arm-kernel Hi! > > I got report that ?reboot/kexec does not work in recent kernels. > > > > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe > > config issue? > > I think it's config issue. Never heard of this. > I've seen that on my zaurus a month or two ago. When kexeced to pxa-linux-2.6 then tried to kexec again. The last thing I've seen was Bye on the framebuffer console and the machine freezed. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-03-17 12:58 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-03-17 12:58 UTC (permalink / raw) To: Eric Miao Cc: Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut Hi! > > I got report that reboot/kexec does not work in recent kernels. > > > > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe > > config issue? > > I think it's config issue. Never heard of this. > I've seen that on my zaurus a month or two ago. When kexeced to pxa-linux-2.6 then tried to kexec again. The last thing I've seen was Bye on the framebuffer console and the machine freezed. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 2011-03-17 12:58 ` Cyril Hrubis @ 2011-03-17 17:07 ` Eric W. Biederman -1 siblings, 0 replies; 23+ messages in thread From: Eric W. Biederman @ 2011-03-17 17:07 UTC (permalink / raw) To: linux-arm-kernel Cyril Hrubis <metan@ucw.cz> writes: > Hi! >> > I got report that ?reboot/kexec does not work in recent kernels. >> > >> > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe >> > config issue? >> >> I think it's config issue. Never heard of this. >> > > I've seen that on my zaurus a month or two ago. When kexeced to pxa-linux-2.6 > then tried to kexec again. The last thing I've seen was Bye on the framebuffer > console and the machine freezed. The basic kexec code has been stable and solid for a long time so kexec failures are almost always hardware interaction problems. Someone not stopping dma, or someone not putting the hardware in a state that the next kernel can figure out how to initialize it. Eric ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-03-17 17:07 ` Eric W. Biederman 0 siblings, 0 replies; 23+ messages in thread From: Eric W. Biederman @ 2011-03-17 17:07 UTC (permalink / raw) To: Cyril Hrubis Cc: Eric Miao, Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut Cyril Hrubis <metan@ucw.cz> writes: > Hi! >> > I got report that reboot/kexec does not work in recent kernels. >> > >> > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe >> > config issue? >> >> I think it's config issue. Never heard of this. >> > > I've seen that on my zaurus a month or two ago. When kexeced to pxa-linux-2.6 > then tried to kexec again. The last thing I've seen was Bye on the framebuffer > console and the machine freezed. The basic kexec code has been stable and solid for a long time so kexec failures are almost always hardware interaction problems. Someone not stopping dma, or someone not putting the hardware in a state that the next kernel can figure out how to initialize it. Eric ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 2011-03-17 10:58 ` Eric Miao @ 2011-03-22 13:30 ` Cyril Hrubis -1 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-03-22 13:30 UTC (permalink / raw) To: linux-arm-kernel Hi! > I think it's config issue. Never heard of this. I've just compiled and booted 2.6.38. The kernel boots without problems when flashed in. But I've had no success with kexec, the last lines I see are: Starting new kernel Bye! _ Any ides where to dig? -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-03-22 13:30 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-03-22 13:30 UTC (permalink / raw) To: Eric Miao Cc: Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut Hi! > I think it's config issue. Never heard of this. I've just compiled and booted 2.6.38. The kernel boots without problems when flashed in. But I've had no success with kexec, the last lines I see are: Starting new kernel Bye! _ Any ides where to dig? -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 2011-03-22 13:30 ` Cyril Hrubis (?) @ 2011-03-25 20:49 ` Eric W. Biederman -1 siblings, 0 replies; 23+ messages in thread From: Eric W. Biederman @ 2011-03-25 20:49 UTC (permalink / raw) To: Cyril Hrubis Cc: zaurus-devel, Eric Miao, Marek Vasut, dbaryshkov, arminlitzel, Kexec Mailing List, kernel list, utx, lenz, rpurdie, omegamoon, Pavel Machek, thommycheck, linux-arm-kernel Cyril Hrubis <metan@ucw.cz> writes: > Hi! >> I think it's config issue. Never heard of this. > > I've just compiled and booted 2.6.38. The kernel boots without problems when > flashed in. But I've had no success with kexec, the last lines I see are: > > Starting new kernel Enable early_printk to a serial port if you can. There is definitely an issue in 2.6.38 where kdump doesn't work, that right now looks like a memblock issue. Eric _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-03-25 20:49 ` Eric W. Biederman 0 siblings, 0 replies; 23+ messages in thread From: Eric W. Biederman @ 2011-03-25 20:49 UTC (permalink / raw) To: Cyril Hrubis Cc: Eric Miao, Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut, Kexec Mailing List Cyril Hrubis <metan@ucw.cz> writes: > Hi! >> I think it's config issue. Never heard of this. > > I've just compiled and booted 2.6.38. The kernel boots without problems when > flashed in. But I've had no success with kexec, the last lines I see are: > > Starting new kernel Enable early_printk to a serial port if you can. There is definitely an issue in 2.6.38 where kdump doesn't work, that right now looks like a memblock issue. Eric ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 @ 2011-03-25 20:49 ` Eric W. Biederman 0 siblings, 0 replies; 23+ messages in thread From: Eric W. Biederman @ 2011-03-25 20:49 UTC (permalink / raw) To: linux-arm-kernel Cyril Hrubis <metan@ucw.cz> writes: > Hi! >> I think it's config issue. Never heard of this. > > I've just compiled and booted 2.6.38. The kernel boots without problems when > flashed in. But I've had no success with kexec, the last lines I see are: > > Starting new kernel Enable early_printk to a serial port if you can. There is definitely an issue in 2.6.38 where kdump doesn't work, that right now looks like a memblock issue. Eric ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 2011-03-25 20:49 ` Eric W. Biederman (?) @ 2011-04-12 14:43 ` Cyril Hrubis -1 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 14:43 UTC (permalink / raw) To: Eric W. Biederman Cc: zaurus-devel, Eric Miao, Marek Vasut, dbaryshkov, arminlitzel, Kexec Mailing List, kernel list, utx, lenz, rpurdie, omegamoon, Pavel Machek, thommycheck, linux-arm-kernel Hi! > >> I think it's config issue. Never heard of this. > > > > I've just compiled and booted 2.6.38. The kernel boots without problems when > > flashed in. But I've had no success with kexec, the last lines I see are: > > > > Starting new kernel > > Enable early_printk to a serial port if you can. > > There is definitely an issue in 2.6.38 where kdump doesn't work, that > right now looks like a memblock issue. Finaly got time to solder serial adapter... And now, after I configured kernel to print to both ttyS0 serial console and tty0 the kexec started to work. -- metan _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-04-12 14:43 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 14:43 UTC (permalink / raw) To: Eric W. Biederman Cc: Eric Miao, Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut, Kexec Mailing List Hi! > >> I think it's config issue. Never heard of this. > > > > I've just compiled and booted 2.6.38. The kernel boots without problems when > > flashed in. But I've had no success with kexec, the last lines I see are: > > > > Starting new kernel > > Enable early_printk to a serial port if you can. > > There is definitely an issue in 2.6.38 where kdump doesn't work, that > right now looks like a memblock issue. Finaly got time to solder serial adapter... And now, after I configured kernel to print to both ttyS0 serial console and tty0 the kexec started to work. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 @ 2011-04-12 14:43 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 14:43 UTC (permalink / raw) To: linux-arm-kernel Hi! > >> I think it's config issue. Never heard of this. > > > > I've just compiled and booted 2.6.38. The kernel boots without problems when > > flashed in. But I've had no success with kexec, the last lines I see are: > > > > Starting new kernel > > Enable early_printk to a serial port if you can. > > There is definitely an issue in 2.6.38 where kdump doesn't work, that > right now looks like a memblock issue. Finaly got time to solder serial adapter... And now, after I configured kernel to print to both ttyS0 serial console and tty0 the kexec started to work. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 2011-04-12 14:43 ` Cyril Hrubis (?) @ 2011-04-12 14:46 ` Eric Miao -1 siblings, 0 replies; 23+ messages in thread From: Eric Miao @ 2011-04-12 14:46 UTC (permalink / raw) To: Cyril Hrubis Cc: zaurus-devel, thommycheck, Marek Vasut, dbaryshkov, arminlitzel, Kexec Mailing List, kernel list, utx, lenz, rpurdie, Eric W. Biederman, Pavel Machek, linux-arm-kernel, omegamoon On Tue, Apr 12, 2011 at 10:43 PM, Cyril Hrubis <metan@ucw.cz> wrote: > Hi! >> >> I think it's config issue. Never heard of this. >> > >> > I've just compiled and booted 2.6.38. The kernel boots without problems when >> > flashed in. But I've had no success with kexec, the last lines I see are: >> > >> > Starting new kernel >> >> Enable early_printk to a serial port if you can. >> >> There is definitely an issue in 2.6.38 where kdump doesn't work, that >> right now looks like a memblock issue. > > Finaly got time to solder serial adapter... > > And now, after I configured kernel to print to both ttyS0 serial console and > tty0 the kexec started to work. Cool. Please help check why it didn't work, and see if we have something broken. > > -- > metan > _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-04-12 14:46 ` Eric Miao 0 siblings, 0 replies; 23+ messages in thread From: Eric Miao @ 2011-04-12 14:46 UTC (permalink / raw) To: Cyril Hrubis Cc: Eric W. Biederman, Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut, Kexec Mailing List On Tue, Apr 12, 2011 at 10:43 PM, Cyril Hrubis <metan@ucw.cz> wrote: > Hi! >> >> I think it's config issue. Never heard of this. >> > >> > I've just compiled and booted 2.6.38. The kernel boots without problems when >> > flashed in. But I've had no success with kexec, the last lines I see are: >> > >> > Starting new kernel >> >> Enable early_printk to a serial port if you can. >> >> There is definitely an issue in 2.6.38 where kdump doesn't work, that >> right now looks like a memblock issue. > > Finaly got time to solder serial adapter... > > And now, after I configured kernel to print to both ttyS0 serial console and > tty0 the kexec started to work. Cool. Please help check why it didn't work, and see if we have something broken. > > -- > metan > ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 @ 2011-04-12 14:46 ` Eric Miao 0 siblings, 0 replies; 23+ messages in thread From: Eric Miao @ 2011-04-12 14:46 UTC (permalink / raw) To: linux-arm-kernel On Tue, Apr 12, 2011 at 10:43 PM, Cyril Hrubis <metan@ucw.cz> wrote: > Hi! >> >> I think it's config issue. Never heard of this. >> > >> > I've just compiled and booted 2.6.38. The kernel boots without problems when >> > flashed in. But I've had no success with kexec, the last lines I see are: >> > >> > Starting new kernel >> >> Enable early_printk to a serial port if you can. >> >> There is definitely an issue in 2.6.38 where kdump doesn't work, that >> right now looks like a memblock issue. > > Finaly got time to solder serial adapter... > > And now, after I configured kernel to print to both ttyS0 serial console and > tty0 the kexec started to work. Cool. Please help check why it didn't work, and see if we have something broken. > > -- > metan > ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 2011-04-12 14:46 ` Eric Miao (?) @ 2011-04-12 18:13 ` Cyril Hrubis -1 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 18:13 UTC (permalink / raw) To: Eric Miao Cc: zaurus-devel, thommycheck, Marek Vasut, dbaryshkov, arminlitzel, Kexec Mailing List, kernel list, utx, lenz, rpurdie, Eric W. Biederman, Pavel Machek, linux-arm-kernel, omegamoon Hi! > >> Enable early_printk to a serial port if you can. > >> > >> There is definitely an issue in 2.6.38 where kdump doesn't work, that > >> right now looks like a memblock issue. > > > > Finaly got time to solder serial adapter... > > > > And now, after I configured kernel to print to both ttyS0 serial console and > > tty0 the kexec started to work. > > Cool. Please help check why it didn't work, and see if we have something > broken. Hmm, It seems to work now (I've changed the config slightly meanwhile and now I've been unable to trigger the bug). Note to myself: save configs that trigger strange behavior. -- metan _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 @ 2011-04-12 18:13 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 18:13 UTC (permalink / raw) To: Eric Miao Cc: Eric W. Biederman, Pavel Machek, rpurdie, lenz, kernel list, arminlitzel, thommycheck, linux-arm-kernel, dbaryshkov, omegamoon, utx, zaurus-devel, Marek Vasut, Kexec Mailing List Hi! > >> Enable early_printk to a serial port if you can. > >> > >> There is definitely an issue in 2.6.38 where kdump doesn't work, that > >> right now looks like a memblock issue. > > > > Finaly got time to solder serial adapter... > > > > And now, after I configured kernel to print to both ttyS0 serial console and > > tty0 the kexec started to work. > > Cool. Please help check why it didn't work, and see if we have something > broken. Hmm, It seems to work now (I've changed the config slightly meanwhile and now I've been unable to trigger the bug). Note to myself: save configs that trigger strange behavior. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* reboot/kexec in 2.6.38 @ 2011-04-12 18:13 ` Cyril Hrubis 0 siblings, 0 replies; 23+ messages in thread From: Cyril Hrubis @ 2011-04-12 18:13 UTC (permalink / raw) To: linux-arm-kernel Hi! > >> Enable early_printk to a serial port if you can. > >> > >> There is definitely an issue in 2.6.38 where kdump doesn't work, that > >> right now looks like a memblock issue. > > > > Finaly got time to solder serial adapter... > > > > And now, after I configured kernel to print to both ttyS0 serial console and > > tty0 the kexec started to work. > > Cool. Please help check why it didn't work, and see if we have something > broken. Hmm, It seems to work now (I've changed the config slightly meanwhile and now I've been unable to trigger the bug). Note to myself: save configs that trigger strange behavior. -- metan ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: reboot/kexec in 2.6.38 2011-03-17 6:45 ` Pavel Machek (?) (?) @ 2011-03-17 10:58 ` WANG Cong -1 siblings, 0 replies; 23+ messages in thread From: WANG Cong @ 2011-03-17 10:58 UTC (permalink / raw) To: linux-kernel; +Cc: zaurus-devel On Thu, 17 Mar 2011 07:45:23 +0100, Pavel Machek wrote: > Hi! > > I got report that reboot/kexec does not work in recent kernels. > > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe config > issue? By "does not work", what is the behavior? ^ permalink raw reply [flat|nested] 23+ messages in thread
end of thread, other threads:[~2011-04-12 18:13 UTC | newest] Thread overview: 23+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2011-03-17 6:45 reboot/kexec in 2.6.38 Pavel Machek 2011-03-17 6:45 ` Pavel Machek 2011-03-17 10:58 ` Eric Miao 2011-03-17 10:58 ` Eric Miao 2011-03-17 12:58 ` Cyril Hrubis 2011-03-17 12:58 ` Cyril Hrubis 2011-03-17 17:07 ` Eric W. Biederman 2011-03-17 17:07 ` Eric W. Biederman 2011-03-22 13:30 ` Cyril Hrubis 2011-03-22 13:30 ` Cyril Hrubis 2011-03-25 20:49 ` Eric W. Biederman 2011-03-25 20:49 ` Eric W. Biederman 2011-03-25 20:49 ` Eric W. Biederman 2011-04-12 14:43 ` Cyril Hrubis 2011-04-12 14:43 ` Cyril Hrubis 2011-04-12 14:43 ` Cyril Hrubis 2011-04-12 14:46 ` Eric Miao 2011-04-12 14:46 ` Eric Miao 2011-04-12 14:46 ` Eric Miao 2011-04-12 18:13 ` Cyril Hrubis 2011-04-12 18:13 ` Cyril Hrubis 2011-04-12 18:13 ` Cyril Hrubis 2011-03-17 10:58 ` WANG Cong
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