From mboxrd@z Thu Jan 1 00:00:00 1970 From: annie li Subject: Re: From XenProject.org Q&A: Kernel panic - xen-netfront driver bug? Date: Sat, 12 Oct 2013 10:11:33 +0800 Message-ID: <5258AFD5.4060506@oracle.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Russ Pavlicek Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Hi Russ, Although I am not so sure, this is likely the recent issue which was finally fixed by http://lists.xen.org/archives/html/xen-devel/2013-09/msg01143.html. That fix mainly connects with larger MTU(for example, 9000), and using less MTU size does not hit that issue. Could you check this in your setup? Thanks Annie On 2013-10-12 4:23, Russ Pavlicek wrote: > Alex asks the following question on the XenProject.org Q&A system. > Can anyone provide an answer for me to post (or can someone post an > answer directly)? > > Thanks! > > ---------------------- > > I'm running Xen 4.3.0-7 on Arch, compiled from AUR. > > I have tried reinstalling Xen with 4.3.1-0 and 4.3.0-4 but had the > same issue with both. I've been very happy with the setup until now. > > I only run into this issue when transferring large amounts of data > between my Windows VM and my unRAID vm. In this case it was my 80GB > photo library, so lots of small files - not one giant one, that > reliably causes this kernel panic. It happens after less than 1 minute > into the transfer. > > I frequently transfer 10GB+ movie files from another VM, which runs > Arch also, as my usenet box. This occurs without issue several times a > day so it appears to me that the issue lies in the Windows / unRAID > communication specifically. Beyond me to know what though. HELP!? > > I'm not sure what other information would be needed to help me so > please if you need more, just ask. > > ------------[ cut here ]------------ > kernel BUG at drivers/net/xen-netfront.c:306! > invalid opcode: 0000 [#1] SMP > Modules linked in: md_mod sg ahci mvsas libsas libahci > scsi_transport_sas coretemp hwmon > Pid: 0, comm: swapper/0 Not tainted 3.9.6p-unRAID #1 > EIP: 0061:[] EFLAGS: 00010286 CPU: 0 > EIP is at xennet_alloc_rx_buffers+0x1bc/0x2bd > EAX: 00000292 EBX: dc4c8440 ECX: 0000005e EDX: 0000005e > ESI: 000002bd EDI: dce873c0 EBP: c1571d74 ESP: c1571d3c > DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069 > CR0: 80050033 CR2: 40ea7000 CR3: 1c587000 CR4: 00042660 > DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 > DR6: ffff0ff0 DR7: 00000400 > Process swapper/0 (pid: 0, ti=c1570000 task=c158004c task.ti=c1570000) > Stack: > 00000000 0000005d dc4c9110 005ea3ac dcdac000 0000005d 00000049 dc4c8ce4 > dc4c8000 00010215 0001025e dc4c8440 dc4c8440 00000040 c1571e2c c1345836 > c3ae26c0 c10296bf 00017e80 c15ab100 00000750 c10296bf c1571e00 c1571df0 > Call Trace: > [] xennet_poll+0x9b6/0xa30 > [] ? pvclock_clocksource_read+0x99/0xbb > [] ? pvclock_clocksource_read+0x99/0xbb > [] ? xen_clocksource_read+0x19/0x1b > [] ? gnttab_end_foreign_transfer_ref_v1+0xe/0x54 > [] net_rx_action+0x5d/0x16f > [] __do_softirq+0x96/0x158 > [] irq_exit+0x38/0x71 > [] xen_evtchn_do_upcall+0x20/0x2a > [] xen_do_upcall+0x7/0xc > [] ? xen_hypercall_sched_op+0x7/0x20 > [] ? xen_safe_halt+0x12/0x1f > [] default_idle+0x1f/0x35 > [] cpu_idle+0x55/0x74 > [] rest_init+0x58/0x5a > [] start_kernel+0x2c4/0x2ca > [] ? repair_env_string+0x53/0x53 > [] i386_start_kernel+0x79/0x7d > [] xen_start_kernel+0x614/0x61f > Code: 00 00 c7 47 04 00 00 00 00 89 42 04 89 10 8b 55 e8 89 57 14 0f > b6 4d f0 0f b7 d1 8d 82 34 02 00 00 66 89 4d d6 83 3c 83 00 74 04 0b > eb fe 89 3c 83 8b 45 d0 89 55 cc e8 79 c7 f7 ff 8b 55 cc > EIP: [] xennet_alloc_rx_buffers+0x1bc/0x2bd SS:ESP 0069:c1571d3c > ---[ end trace f1245c97afa1ffd0 ]--- > Kernel panic - not syncing: Fatal exception in interrupt > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel