From: Meng Xu <email@example.com> To: Tianyang Chen <firstname.lastname@example.org> Cc: "email@example.com" <firstname.lastname@example.org>, Dario Faggioli <email@example.com>, George Dunlap <firstname.lastname@example.org>, Dagaen Golomb <email@example.com> Subject: Re: [PATCH v11]xen: sched: convert RTDS from time to event driven model Date: Fri, 18 Mar 2016 00:09:24 -0400 [thread overview] Message-ID: <CAENZ-+=YKbyznj0JH-HyKhHQut3wTN=ZSfLkxFgzeNUbnPm4Tg@mail.gmail.com> (raw) In-Reply-To: <firstname.lastname@example.org> Hi Tianyang, Great job! However, we still have 1 mile in the 100-mile journey. :-D I applied the patch on staging and tried some test cases. One of them is as follows: I tried to create a cpupool and then migrate a VM to the new cpupool; However, the system triggers the bug as below. I guess this is some kind of bug that are known to us, and Dario had some uncommitted patch to fix it, IIRC? I'm thinking maybe we should mark this issue as known issue so that we won't be surprised to see it. However, this issue should not stay in the code forever, for sure. :-) The test scenario is: Pool-0 has rtds scheduler, then I create cpupools with credit, credit2, rtds scheduler; The bug occurs when I run the scripts. However, my machine just got stuck and never goes up.. :-( What's worse, the remote power switch I have cannot be connected as well, so I cannot power off/on the machine to reboot tonight. I will do it tomorrow when I get to school. Below is the error message. (XEN) Xen call trace: (XEN) [<ffff82d0801293ed>] sched_rt.c#rt_free_pdata+0x48/0x93 (XEN) [<ffff82d08012e182>] schedule_cpu_switch+0x250/0x28a (XEN) [<ffff82d080101b49>] cpupool.c#cpupool_assign_cpu_locked+0x31/0x11f (XEN) [<ffff82d080102385>] cpupool_do_sysctl+0x1eb/0x68d (XEN) [<ffff82d080130785>] do_sysctl+0x615/0x102c (XEN) [<ffff82d0802449c2>] lstar_enter+0xe2/0x13c (XEN) (XEN) (XEN) **************************************** (XEN) Panic on CPU 5: (XEN) Assertion 'sd->schedule_lock == &prv->lock' failed at sched_rt.c:690 Thanks, Meng ----------- Meng Xu PhD Student in Computer and Information Science University of Pennsylvania http://www.cis.upenn.edu/~mengxu/ _______________________________________________ Xen-devel mailing list Xenemail@example.com http://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-03-18 4:09 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-03-17 16:06 Tianyang Chen 2016-03-17 18:27 ` Dario Faggioli 2016-03-17 20:12 ` Chen, Tianyang 2016-03-18 1:45 ` Meng Xu 2016-03-18 4:09 ` Meng Xu [this message] 2016-03-18 7:45 ` Jan Beulich 2016-03-18 9:23 ` Dario Faggioli 2016-03-18 14:23 ` Meng Xu 2016-03-18 14:19 ` Meng Xu 2016-03-18 9:24 ` Dario Faggioli 2016-03-18 14:25 ` Meng Xu
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