|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen-unstable Linux 3.14-rc3 and 3.13 Network troubles
Thursday, February 20, 2014, 10:49:58 AM, you wrote: > On 2014/2/19 5:25, Sander Eikelenboom wrote: >> Hi All, >> >> I'm currently having some network troubles with Xen and recent linux kernels. >> >> - When running with a 3.14-rc3 kernel in dom0 and a 3.13 kernel in domU >> I get what seems to be described in this thread: >> http://www.spinics.net/lists/netdev/msg242953.html >> >> In the guest: >> [57539.859584] net eth0: rx->offset: 0, size: 4294967295 >> [57539.859599] net eth0: rx->offset: 0, size: 4294967295 >> [57539.859605] net eth0: rx->offset: 0, size: 4294967295 >> [57539.859610] net eth0: Need more slots >> [58157.675939] net eth0: Need more slots >> [58725.344712] net eth0: Need more slots >> [61815.849180] net eth0: rx->offset: 0, size: 4294967295 >> [61815.849205] net eth0: rx->offset: 0, size: 4294967295 >> [61815.849216] net eth0: rx->offset: 0, size: 4294967295 >> [61815.849225] net eth0: Need more slots > This issue is familiar... and I thought it get fixed. > From original analysis for similar issue I hit before, the root cause > is netback still creates response when the ring is full. I remember > larger MTU can trigger this issue before, what is the MTU size? In dom0 both for the physical nics and the guest vif's MTU=1500 In domU the eth0 also has MTU=1500. So it's not jumbo frames .. just everywhere the same plain defaults .. With the patch from Wei that solves the other issue, i'm still seeing the Need more slots issue on 3.14-rc3+wei's patch now. I have extended the "need more slots warn" to also print the cons, slots, max, rx->offset, size, hope that gives some more insight. But it indeed is the VM were i had similar issues before, the primary thing this VM does is 2 simultaneous rsync's (one push one pull) with some gigabytes of data. This time it was also acompanied by a "grant_table.c:1857:d0 Bad grant reference " as seen below, don't know if it's a cause or a effect though. Will keep you posted when it triggers again with the extra info in the warn. -- Sander > Thanks > Annie >> >> Xen reports: >> (XEN) [2014-02-18 03:22:47] grant_table.c:1857:d0 Bad grant reference >> 19791875 >> (XEN) [2014-02-18 03:42:33] grant_table.c:1857:d0 Bad grant reference >> 268435460 >> (XEN) [2014-02-18 04:15:23] grant_table.c:289:d0 Increased maptrack size >> to 14 frames >> (XEN) [2014-02-18 04:15:27] grant_table.c:289:d0 Increased maptrack size >> to 15 frames >> (XEN) [2014-02-18 04:15:48] grant_table.c:289:d0 Increased maptrack size >> to 16 frames >> (XEN) [2014-02-18 04:15:50] grant_table.c:289:d0 Increased maptrack size >> to 17 frames >> (XEN) [2014-02-18 04:15:55] grant_table.c:289:d0 Increased maptrack size >> to 18 frames >> (XEN) [2014-02-18 04:15:55] grant_table.c:289:d0 Increased maptrack size >> to 19 frames >> (XEN) [2014-02-18 04:15:56] grant_table.c:289:d0 Increased maptrack size >> to 20 frames >> (XEN) [2014-02-18 04:15:56] grant_table.c:289:d0 Increased maptrack size >> to 21 frames >> (XEN) [2014-02-18 04:15:59] grant_table.c:289:d0 Increased maptrack size >> to 22 frames >> (XEN) [2014-02-18 04:15:59] grant_table.c:289:d0 Increased maptrack size >> to 23 frames >> (XEN) [2014-02-18 04:16:00] grant_table.c:289:d0 Increased maptrack size >> to 24 frames >> (XEN) [2014-02-18 04:16:05] grant_table.c:289:d0 Increased maptrack size >> to 25 frames >> (XEN) [2014-02-18 04:16:05] grant_table.c:289:d0 Increased maptrack size >> to 26 frames >> (XEN) [2014-02-18 04:16:06] grant_table.c:289:d0 Increased maptrack size >> to 27 frames >> (XEN) [2014-02-18 04:16:12] grant_table.c:289:d0 Increased maptrack size >> to 28 frames >> (XEN) [2014-02-18 04:16:18] grant_table.c:289:d0 Increased maptrack size >> to 29 frames >> (XEN) [2014-02-18 04:17:00] grant_table.c:1857:d0 Bad grant reference >> 268435460 >> (XEN) [2014-02-18 04:17:00] grant_table.c:1857:d0 Bad grant reference >> 268435460 >> (XEN) [2014-02-18 04:34:03] grant_table.c:1857:d0 Bad grant reference >> 4325377 >> >> >> >> Another issue with networking is when running both dom0 and domU's with a >> 3.14-rc3 kernel: >> - i can ping the guests from dom0 >> - i can ping dom0 from the guests >> - But i can't ssh or access things by http >> - I don't see any relevant error messages ... >> - This is with the same system and kernel config as with the 3.14 and >> 3.13 combination above >> (that previously worked fine) >> >> -- >> >> Sander >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxx >> http://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |