From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Re: [xen-unstable test] 6289: regressions - FAIL Date: Thu, 03 Mar 2011 11:06:26 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: George Dunlap , Ian Jackson Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On 03/03/2011 10:56, "George Dunlap" wrote: > Hmm, what's our policy on adding debugging patches this late in the cycle= ? >=20 > The addition of a one-line BUG_ON() in another place in the code might > help next time this happens; printing out more information when this > happens would be nice as well. Since credit2 is non-default and nor considered production ready, it would certainly be okay in this case imo. Credit2 readiness is not going to be a 4.1 blocker. -- Keir > -George >=20 > On Wed, Mar 2, 2011 at 5:13 PM, Ian Jackson w= rote: >> Ian Jackson writes ("[xen-unstable test] 6289: regressions - FAIL"): >>> test-amd64-xcpkern-i386-xl-credit2 10 guest-saverestore =A0fail REGR. vs.= 6288 >>=20 >> Xen crash in credit2 code. >>=20 >> Ian. >>=20 >> Mar =A02 15:35:31.195760 (XEN) csched_vcpu_insert: Inserting d2v3 >> Mar =A02 15:35:31.195786 (XEN) Xen BUG at sched_credit2.c:1606 >> Mar =A02 15:35:38.766789 (XEN) ----[ Xen-4.1.0-rc7-pre =A0x86_64 =A0debug=3Dy =A0N= ot >> tainted ]---- >> Mar =A02 15:35:38.766829 (XEN) CPU: =A0 =A08 >> Mar =A02 15:35:38.778761 (XEN) RIP: =A0 =A0e008:[] >> csched_schedule+0x151/0xac9 >> Mar =A02 15:35:38.778794 (XEN) RFLAGS: 0000000000010007 =A0 CONTEXT: hypervi= sor >> Mar =A02 15:35:38.790766 (XEN) rax: ffff830226f12000 =A0 rbx: ffff830226e03e= 30 =A0 >> rcx: 0000000000000000 >> Mar =A02 15:35:38.790801 (XEN) rdx: ffff8301a7fe0010 =A0 rsi: ffff82c4802497= 80 =A0 >> rdi: ffff8300d7ad2000 >> Mar =A02 15:35:38.802790 (XEN) rbp: ffff8301a7e9fe38 =A0 rsp: ffff8301a7e9fd= 28 =A0 >> r8: =A00000000000000001 >> Mar =A02 15:35:38.814768 (XEN) r9: =A00000000000000005 =A0 r10: ffff8300d7ad20= 30 =A0 >> r11: 00000055197f6700 >> Mar =A02 15:35:38.814809 (XEN) r12: ffff8301a7fe02d0 =A0 r13: 00000000000000= 00 =A0 >> r14: ffff8301a7ea4060 >> Mar =A02 15:35:38.822777 (XEN) r15: 0000000000000008 =A0 cr0: 00000000800500= 3b =A0 >> cr4: 00000000000006f4 >> Mar =A02 15:35:38.831784 (XEN) cr3: 00000001a7e12000 =A0 cr2: 00000000b78891= cd >> Mar =A02 15:35:38.831815 (XEN) ds: 007b =A0 es: 007b =A0 fs: 00d8 =A0 gs: 0000 =A0= ss: >> 0000 =A0 cs: e008 >> Mar =A02 15:35:38.846770 (XEN) Xen stack trace from rsp=3Dffff8301a7e9fd28: >> Mar =A02 15:35:38.846799 (XEN) =A0 =A0ffffffff00000206 ffff8301a7fe0010 >> ffff8301a7fe0238 ffff8301a7fe02d4 >> Mar =A02 15:35:38.855776 (XEN) =A0 =A00000005518e697c4 ffff82c480249780 >> ffff8301a7e9fe68 0000000000000001 >> Mar =A02 15:35:38.863764 (XEN) =A0 =A0ffff8301a7e9fdc8 ffff82c480122b07 >> ffff8301a7e9fdc8 ffff82c4802d3ec0 >> Mar =A02 15:35:38.863800 (XEN) =A0 =A0ffff82c4802d3ec0 ffff8300d7ad2000 >> 0000000000000246 ffff8301a7fe02d4 >> Mar =A02 15:35:38.875776 (XEN) =A0 =A0ffff82c4802d3ec0 ffff8301a7fe0010 >> ffff82c4802c27c0 ffff8300d7ad2000 >> Mar =A02 15:35:38.887766 (XEN) =A0 =A0ffff8301a7e9fdf8 ffff82c480122f89 >> ffff8301a7ea4060 ffff8301a7e9fdf8 >> Mar =A02 15:35:38.887801 (XEN) =A0 =A0ffff82c480125eed 0000000000000008 >> ffff8301a7e9fe38 0000000000000082 >> Mar =A02 15:35:38.902777 (XEN) =A0 =A00000000000000082 0000000000000000 >> ffff8300d7ad2000 ffff82c480249780 >> Mar =A02 15:35:38.907768 (XEN) =A0 =A0ffff8301a7ea4060 ffff8301a7ea4040 >> ffff8301a7e9feb8 ffff82c480121fd2 >> Mar =A02 15:35:38.907809 (XEN) =A0 =A0ffff8301a7e9fec0 0000005518e697c4 >> 0000000000000000 00000000c04520a0 >> Mar =A02 15:35:38.922781 (XEN) =A0 =A0ffff830226f12000 0000000000000006 >> ffff8301a7e9fef8 ffff82c4801380a8 >> Mar =A02 15:35:38.934774 (XEN) =A0 =A00000000000000000 0000000000000008 >> 0000000000000008 ffff82c4802b0880 >> Mar =A02 15:35:38.934809 (XEN) =A0 =A0ffff8301a7e9ff18 ffffffffffffffff >> ffff8301a7e9fef8 ffff82c480123627 >> Mar =A02 15:35:38.943781 (XEN) =A0 =A00000000000000000 ffff8300d7ad2000 >> 0000000000000000 0000000000000000 >> Mar =A02 15:35:38.954769 (XEN) =A0 =A00000000000000000 0000000000000000 >> ffff8301a7e9ff08 ffff82c4801236a2 >> Mar =A02 15:35:38.954808 (XEN) =A0 =A000007cfe581600c7 ffff82c480211e86 >> 0000000000000000 0000000000000000 >> Mar =A02 15:35:38.963789 (XEN) =A0 =A00000000000000000 0000000000000000 >> 00000000c8061f40 00000000deadbeef >> Mar =A02 15:35:38.975779 (XEN) =A0 =A00000000000000000 0000000000000000 >> 0000000000000000 0000000000000000 >> Mar =A02 15:35:38.990772 (XEN) =A0 =A00000000000000000 00000000deadbeef >> 00000000deadbeef 0000000000000000 >> Mar =A02 15:35:38.990814 (XEN) =A0 =A000000000c04f3020 0000010000000000 >> 00000000c0101307 0000000000000061 >> Mar =A02 15:35:38.995826 (XEN) Xen call trace: >> Mar =A02 15:35:38.995841 (XEN) =A0 =A0[] >> csched_schedule+0x151/0xac9 >> Mar =A02 15:35:39.007767 (XEN) =A0 =A0[] schedule+0x12a/0x62= 4 >> Mar =A02 15:35:39.007797 (XEN) =A0 =A0[] __do_softirq+0x88/0= x99 >> Mar =A02 15:35:39.022765 (XEN) =A0 =A0[] do_softirq+0x6a/0x7= a >> Mar =A02 15:35:39.022795 (XEN) >> Mar =A02 15:35:39.022813 (XEN) >> Mar =A02 15:35:39.022824 (XEN) **************************************** >> Mar =A02 15:35:39.031765 (XEN) Panic on CPU 8: >> Mar =A02 15:35:39.031787 (XEN) Xen BUG at sched_credit2.c:1606 >> Mar =A02 15:35:39.031811 (XEN) **************************************** >> Mar =A02 15:35:39.038756 (XEN) >> Mar =A02 15:35:39.038770 (XEN) Reboot in five seconds... >>=20 >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel >>=20