* Frequent reports about Xen unstable hanging on ARM boots @ 2016-03-15 10:56 Lars Kurth 2016-03-15 18:37 ` Julien Grall 0 siblings, 1 reply; 7+ messages in thread From: Lars Kurth @ 2016-03-15 10:56 UTC (permalink / raw) To: xen-devel; +Cc: WeiLiu, Julien Grall, Stefano Stabellini Folks, I just noticed a cluster of issues related to Xen unstable hanging on various ARM boards. See * http://xenproject.org/help/questions-and-answers/dra7-j6-evm-xen-booting-issue.html * http://xenproject.org/help/questions-and-answers/problem-with-dom0.html * http://xenproject.org/help/questions-and-answers/running-xen-on-omap5.html This may imply an underlying bug somewhere that may need to be looked into Lars _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-15 10:56 Frequent reports about Xen unstable hanging on ARM boots Lars Kurth @ 2016-03-15 18:37 ` Julien Grall 2016-03-16 9:05 ` Chen Baozi 2016-03-16 21:18 ` Lars Kurth 0 siblings, 2 replies; 7+ messages in thread From: Julien Grall @ 2016-03-15 18:37 UTC (permalink / raw) To: Lars Kurth, xen-devel; +Cc: Stefano Stabellini, baozich, WeiLiu (CC Chen for the omap port) Hi Lars, On 15/03/16 10:56, Lars Kurth wrote: > Folks, > > I just noticed a cluster of issues related to Xen unstable hanging on various ARM boards. See > * http://xenproject.org/help/questions-and-answers/dra7-j6-evm-xen-booting-issue.html Xen seems to be stuck just after bringing up the secondary CPU. This would require further debug to find where Xen is stuck. I don't have the board but I'm happy to give advice on which part to focus. > * http://xenproject.org/help/questions-and-answers/problem-with-dom0.html > * http://xenproject.org/help/questions-and-answers/running-xen-on-omap5.html "(XEN) Freed 280kB init memory" is the last message printed by Xen before DOM0 is booting. At this stage, the problem is usually specific to the board. I've looked at the wiki page, it is recommended to use upstream but doesn't provide a version which is known to work. Chen, do you remember which version of Linux is supposed to work on this board? Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-15 18:37 ` Julien Grall @ 2016-03-16 9:05 ` Chen Baozi 2016-03-16 21:18 ` Lars Kurth 1 sibling, 0 replies; 7+ messages in thread From: Chen Baozi @ 2016-03-16 9:05 UTC (permalink / raw) To: Julien Grall; +Cc: Lars Kurth, xen-devel, WeiLiu, Stefano Stabellini On Tue, Mar 15, 2016 at 06:37:43PM +0000, Julien Grall wrote: > (CC Chen for the omap port) > > Hi Lars, > > On 15/03/16 10:56, Lars Kurth wrote: > >Folks, > > > >I just noticed a cluster of issues related to Xen unstable hanging on various ARM boards. See > >* http://xenproject.org/help/questions-and-answers/dra7-j6-evm-xen-booting-issue.html > > Xen seems to be stuck just after bringing up the secondary CPU. This would > require further debug to find where Xen is stuck. > > I don't have the board but I'm happy to give advice on which part to focus. > > >* http://xenproject.org/help/questions-and-answers/problem-with-dom0.html > >* http://xenproject.org/help/questions-and-answers/running-xen-on-omap5.html > > "(XEN) Freed 280kB init memory" is the last message printed by Xen before > DOM0 is booting. > > At this stage, the problem is usually specific to the board. I've looked at > the wiki page, it is recommended to use upstream but doesn't provide a > version which is known to work. Chen, do you remember which version of Linux > is supposed to work on this board? Upstream kernel should work for OMAP5 since the wiki has been wrote. I can't remember the exact upstream linux version which started to fully support my OMAP5 uEVM board. Just check my old source tree, where v3.11 is the version I worked on for the last time. Cheers, Baozi. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-15 18:37 ` Julien Grall 2016-03-16 9:05 ` Chen Baozi @ 2016-03-16 21:18 ` Lars Kurth 2016-03-16 21:57 ` Paul Sujkov 1 sibling, 1 reply; 7+ messages in thread From: Lars Kurth @ 2016-03-16 21:18 UTC (permalink / raw) To: Julien Grall, psujkov, Doug Goldstein Cc: xen-devel, baozich, WeiLiu, Stefano Stabellini Julien, Bao, thanks for responding so quickly. (CC'ing Paul and Doug) > On 15 Mar 2016, at 18:37, Julien Grall <julien.grall@arm.com> wrote: > > On 15/03/16 10:56, Lars Kurth wrote: >> Folks, >> >> I just noticed a cluster of issues related to Xen unstable hanging on various ARM boards. See >> * http://xenproject.org/help/questions-and-answers/dra7-j6-evm-xen-booting-issue.html > > Xen seems to be stuck just after bringing up the secondary CPU. This would require further debug to find where Xen is stuck. > > I don't have the board but I'm happy to give advice on which part to focus. @Paul: I remember that you guys are using Jacinto boards. You may want to double check quickly, whether this affects you also. If it is a bug that has been introduced recently, it be good to get it resolved before the next release. @Doug, you mentioned on IRC that you see a similar issue on a board which worked before. What board are you using? Lars _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-16 21:18 ` Lars Kurth @ 2016-03-16 21:57 ` Paul Sujkov 2016-03-18 17:20 ` Paul Sujkov 0 siblings, 1 reply; 7+ messages in thread From: Paul Sujkov @ 2016-03-16 21:57 UTC (permalink / raw) To: Lars Kurth Cc: WeiLiu, Doug Goldstein, Julien Grall, Stefano Stabellini, xen-devel, baozich [-- Attachment #1.1: Type: text/plain, Size: 85 bytes --] Thanks Lars, we're not using 4.7-unstable at the moment, but we'll check this asap. [-- Attachment #1.2: Type: text/html, Size: 152 bytes --] [-- Attachment #2: Type: text/plain, Size: 126 bytes --] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-16 21:57 ` Paul Sujkov @ 2016-03-18 17:20 ` Paul Sujkov 2016-03-18 17:36 ` Юрій Коноваленко 0 siblings, 1 reply; 7+ messages in thread From: Paul Sujkov @ 2016-03-18 17:20 UTC (permalink / raw) To: Lars Kurth Cc: WeiLiu, orientua, Doug Goldstein, Julien Grall, Stefano Stabellini, xen-devel, baozich [-- Attachment #1.1: Type: text/plain, Size: 77 bytes --] Hi, linking in Iurii, who did an investigation of this issue from our side. [-- Attachment #1.2: Type: text/html, Size: 154 bytes --] [-- Attachment #2: Type: text/plain, Size: 126 bytes --] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Frequent reports about Xen unstable hanging on ARM boots 2016-03-18 17:20 ` Paul Sujkov @ 2016-03-18 17:36 ` Юрій Коноваленко 0 siblings, 0 replies; 7+ messages in thread From: Юрій Коноваленко @ 2016-03-18 17:36 UTC (permalink / raw) To: Paul Sujkov Cc: WeiLiu, Lars Kurth, Doug Goldstein, Julien Grall, Stefano Stabellini, xen-devel, baozich [-- Attachment #1.1: Type: text/plain, Size: 1217 bytes --] Hi, Lars! We've just verified current master (Xen 4.7-unstable) on our DRA7 setup. Everything works fine, issue is not reproduced. There are a lot of strange things in this setup: 1. It seems like there are problems with UART driver detection in Xen. It is because of incorrect command line: (XEN) Command line: sync_console console=uart dtuart=uart1 According to wiki must be "sync_console console=dtuart dtuart=serial2". I see setuping it in u-boot: U-Boot# setenv xen_bootargs 'sync_console console=dtuart dtuart=serial2' U-Boot# fdt set /chosen xen,xen-bootargs \"$xen_bootargs\" But as you can see it doesn't work. 2. We have for our DRA7 setup console on serial0, not serial2. Is it right to use serial2 for that setup? 3. Xen starts not in Hypervisor mode, nad switches to this mode: - NOT HYP, setting it ... - - Xen starting in Hyp mode - As far as I know, this functionality is moved to u-boot, I can't see this code in master branch. So, are there any additional patches over mainline? 18 марта 2016 г. 19:21 пользователь "Paul Sujkov" <psujkov@gmail.com> написал: > Hi, > > linking in Iurii, who did an investigation of this issue from our side. > [-- Attachment #1.2: Type: text/html, Size: 1642 bytes --] [-- Attachment #2: Type: text/plain, Size: 126 bytes --] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2016-03-18 17:37 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2016-03-15 10:56 Frequent reports about Xen unstable hanging on ARM boots Lars Kurth 2016-03-15 18:37 ` Julien Grall 2016-03-16 9:05 ` Chen Baozi 2016-03-16 21:18 ` Lars Kurth 2016-03-16 21:57 ` Paul Sujkov 2016-03-18 17:20 ` Paul Sujkov 2016-03-18 17:36 ` Юрій Коноваленко
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