* Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 @ 2014-06-24 17:57 John McDermott 2014-06-25 8:28 ` Ian Campbell 0 siblings, 1 reply; 6+ messages in thread From: John McDermott @ 2014-06-24 17:57 UTC (permalink / raw) To: xen-devel Xen Developers, Trying to build arm64 on x86_64 following the guidance on the wiki; everything ok 'till I have to run qemu static for arm64. It fails because there is no arm64 specific binary installed in Ubuntu 13.10, even though the wiki procedure says it should work. Not to worry; get the source and build it, I think. However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. Is there an alternative source for this code? Sincerely, John ---- What is the formal meaning of the one-line program #include "/dev/tty" J.P. McDermott building 12 Code 5542 john.mcdermott@nrl.navy.mil Naval Research Laboratory voice: +1 202.404.8301 Washington, DC 20375, US fax: +1 202.404.7942 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 2014-06-24 17:57 Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 John McDermott @ 2014-06-25 8:28 ` Ian Campbell 2014-06-25 11:40 ` Julien Grall 0 siblings, 1 reply; 6+ messages in thread From: Ian Campbell @ 2014-06-25 8:28 UTC (permalink / raw) To: John McDermott; +Cc: xen-devel On Tue, 2014-06-24 at 13:57 -0400, John McDermott wrote: > Xen Developers, > > Trying to build arm64 on x86_64 following the guidance on the wiki; > everything ok 'till I have to run qemu static for arm64. It fails > because there is no arm64 specific binary installed in Ubuntu 13.10, > even though the wiki procedure says it should work. Which wiki page? > Not to worry; get the source and build it, I think. > > However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. > > The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. > > Is there an alternative source for this code? IIRC it's all in mainline qemu these days. Ian. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 2014-06-25 8:28 ` Ian Campbell @ 2014-06-25 11:40 ` Julien Grall 2014-06-25 11:45 ` Ian Campbell 0 siblings, 1 reply; 6+ messages in thread From: Julien Grall @ 2014-06-25 11:40 UTC (permalink / raw) To: Ian Campbell, John McDermott; +Cc: xen-devel On 06/25/2014 09:28 AM, Ian Campbell wrote: > On Tue, 2014-06-24 at 13:57 -0400, John McDermott wrote: >> Xen Developers, >> >> Trying to build arm64 on x86_64 following the guidance on the wiki; >> everything ok 'till I have to run qemu static for arm64. It fails >> because there is no arm64 specific binary installed in Ubuntu 13.10, >> even though the wiki procedure says it should work. > > Which wiki page? > >> Not to worry; get the source and build it, I think. >> >> However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. >> >> The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. >> >> Is there an alternative source for this code? > > IIRC it's all in mainline qemu these days. Last time I tried mainline QEMU (it was about a month ago), I was not able to build the different package with an opensuse rootfs. It was because of the threading issue. I don't think it has been fixed yet. You can use the QEMU provided by Suse which work fine: git clone -b aarch64-work https://github.com/openSUSE/qemu.git qemu-aarch64 Regards, -- Julien Grall ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 2014-06-25 11:40 ` Julien Grall @ 2014-06-25 11:45 ` Ian Campbell 2014-06-25 11:55 ` Julien Grall 0 siblings, 1 reply; 6+ messages in thread From: Ian Campbell @ 2014-06-25 11:45 UTC (permalink / raw) To: Julien Grall; +Cc: John McDermott, xen-devel On Wed, 2014-06-25 at 12:40 +0100, Julien Grall wrote: > On 06/25/2014 09:28 AM, Ian Campbell wrote: > > On Tue, 2014-06-24 at 13:57 -0400, John McDermott wrote: > >> Xen Developers, > >> > >> Trying to build arm64 on x86_64 following the guidance on the wiki; > >> everything ok 'till I have to run qemu static for arm64. It fails > >> because there is no arm64 specific binary installed in Ubuntu 13.10, > >> even though the wiki procedure says it should work. > > > > Which wiki page? > > > >> Not to worry; get the source and build it, I think. > >> > >> However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. > >> > >> The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. > >> > >> Is there an alternative source for this code? > > > > IIRC it's all in mainline qemu these days. > > Last time I tried mainline QEMU (it was about a month ago), I was not > able to build the different package with an opensuse rootfs. > > It was because of the threading issue. I don't think it has been fixed yet. The threading issue affects the Xen tools build? Or were you building something else? > > You can use the QEMU provided by Suse which work fine: > > git clone -b aarch64-work https://github.com/openSUSE/qemu.git qemu-aarch64 > > Regards, > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 2014-06-25 11:45 ` Ian Campbell @ 2014-06-25 11:55 ` Julien Grall 2014-06-25 12:03 ` Ian Campbell 0 siblings, 1 reply; 6+ messages in thread From: Julien Grall @ 2014-06-25 11:55 UTC (permalink / raw) To: Ian Campbell; +Cc: John McDermott, xen-devel On 06/25/2014 12:45 PM, Ian Campbell wrote: > On Wed, 2014-06-25 at 12:40 +0100, Julien Grall wrote: >> On 06/25/2014 09:28 AM, Ian Campbell wrote: >>> On Tue, 2014-06-24 at 13:57 -0400, John McDermott wrote: >>>> Xen Developers, >>>> >>>> Trying to build arm64 on x86_64 following the guidance on the wiki; >>>> everything ok 'till I have to run qemu static for arm64. It fails >>>> because there is no arm64 specific binary installed in Ubuntu 13.10, >>>> even though the wiki procedure says it should work. >>> >>> Which wiki page? >>> >>>> Not to worry; get the source and build it, I think. >>>> >>>> However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. >>>> >>>> The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. >>>> >>>> Is there an alternative source for this code? >>> >>> IIRC it's all in mainline qemu these days. >> >> Last time I tried mainline QEMU (it was about a month ago), I was not >> able to build the different package with an opensuse rootfs. >> >> It was because of the threading issue. I don't think it has been fixed yet. > > The threading issue affects the Xen tools build? Or were you building > something else? Actually it was affecting the package manager zypper: sh-4.2# zypper install gcc Retrieving repository 'openSUSE-13.1-repo-update' metadata -----------------------------------------------------------------------------------------------------------------------------------------------------[|] *** Error in `/usr/bin/zypper': malloc(): memory corruption: 0x0000004004000fc0 *** Segmentation fault (core dumped) sh-4.2# zypper install gcc Retrieving repository 'openSUSE-13.1-repo-update' metadata -----------------------------------------------------------------------------------------------------------------------------------------------------[\] /home/xentest/works/qemu/tcg/tcg.c:1693: tcg fatal error I had a chat with Alexander Graf and Alex Bennée. IIRC they were looking to a nice way to handle it in qemu upstream. In meantime, if you want to use QEMU mainline with the opensuse rootfs, you can add this patch (copied from the suse tree): commit ca45f1d446ca88675e85bf80f133d3d8d955dbf0 Author: Alexander Graf <agraf@suse.de> Date: Tue Jul 10 20:40:55 2012 +0200 linux-user: Run multi-threaded code on a single core Running multi-threaded code can easily expose some of the fundamental breakages in QEMU's design. It's just not a well supported scenario. So if we pin the whole process to a single host CPU, we guarantee that we will never have concurrent memory access actually happen. We can still get scheduled away at any time, so it's no complete guarantee, but apparently it reduces the odds well enough to get my test cases to pass. This gets Java 1.7 working for me again on my test box. Signed-off-by: Alexander Graf <agraf@suse.de> diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 4823aa0..ff5ed06 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4334,6 +4334,15 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, if (nptl_flags & CLONE_SETTLS) cpu_set_tls (new_env, newtls); + /* agraf: Pin ourselves to a single CPU when running multi-threaded. + This turned out to improve stability for me. */ + { + cpu_set_t mask; + CPU_ZERO(&mask); + CPU_SET(0, &mask); + sched_setaffinity(0, sizeof(mask), &mask); + } + /* Grab a mutex so that thread setup appears atomic. */ pthread_mutex_lock(&clone_lock); --- -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 2014-06-25 11:55 ` Julien Grall @ 2014-06-25 12:03 ` Ian Campbell 0 siblings, 0 replies; 6+ messages in thread From: Ian Campbell @ 2014-06-25 12:03 UTC (permalink / raw) To: Julien Grall; +Cc: John McDermott, xen-devel On Wed, 2014-06-25 at 12:55 +0100, Julien Grall wrote: > On 06/25/2014 12:45 PM, Ian Campbell wrote: > > On Wed, 2014-06-25 at 12:40 +0100, Julien Grall wrote: > >> On 06/25/2014 09:28 AM, Ian Campbell wrote: > >>> On Tue, 2014-06-24 at 13:57 -0400, John McDermott wrote: > >>>> Xen Developers, > >>>> > >>>> Trying to build arm64 on x86_64 following the guidance on the wiki; > >>>> everything ok 'till I have to run qemu static for arm64. It fails > >>>> because there is no arm64 specific binary installed in Ubuntu 13.10, > >>>> even though the wiki procedure says it should work. > >>> > >>> Which wiki page? > >>> > >>>> Not to worry; get the source and build it, I think. > >>>> > >>>> However, I cannot clone the git repo for the source, no matter which system I clone from. I even tried it from a Mac and get the same "fatal repo not found" error. > >>>> > >>>> The repo is 'https://github.com/susematz/qemu/tree/aarch64-1.6/' and I can see it in my browser just fine. > >>>> > >>>> Is there an alternative source for this code? > >>> > >>> IIRC it's all in mainline qemu these days. > >> > >> Last time I tried mainline QEMU (it was about a month ago), I was not > >> able to build the different package with an opensuse rootfs. > >> > >> It was because of the threading issue. I don't think it has been fixed yet. > > > > The threading issue affects the Xen tools build? Or were you building > > something else? > > Actually it was affecting the package manager zypper: Ah, I think I installed my build environment with the openSUSE version (which was all which existed back then) and haven't needed to run zypper since I switched to mainline. > commit ca45f1d446ca88675e85bf80f133d3d8d955dbf0 > Author: Alexander Graf <agraf@suse.de> > Date: Tue Jul 10 20:40:55 2012 +0200 > > linux-user: Run multi-threaded code on a single core How exciting! Ian. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-06-25 12:03 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2014-06-24 17:57 Can't clone static arm64 binary from https://github.com/susematz/qemu/tree/aarch64-1.6 John McDermott 2014-06-25 8:28 ` Ian Campbell 2014-06-25 11:40 ` Julien Grall 2014-06-25 11:45 ` Ian Campbell 2014-06-25 11:55 ` Julien Grall 2014-06-25 12:03 ` Ian Campbell
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