https://bugzilla.novell.com/show_bug.cgi?id=670250 https://bugzilla.novell.com/show_bug.cgi?id=670250#c0 Summary: domU kernel panic on boot in xennet (kernel-xen-2.6.37-20 on openSUSE 11.4 M6) Classification: openSUSE Product: openSUSE 11.4 Version: Factory Platform: i586 OS/Version: Linux Status: NEW Severity: Critical Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: tserong@novell.com QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101203 SUSE/3.6.13-0.2.1 Firefox/3.6.13 SLES 11 SP1 dom0, on old x86 (32 bit, no VT) hardware. dom0 kernel is 2.6.32.12-0.7-xen. Boot an openSUSE 11.4 M6 domU, and we get a kernel panic due to a null pointer dereference in xennet. Reproducible: Always Steps to Reproduce: # virsh create factory-0.xml --console Domain factory-0 created from factory-0.xml Connected to domain factory-0 Escape character is ^] [ 0.000000] Reserving virtual address space above 0xf5800000 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.37-20-xen (geeko@buildhost) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #1 SMP 2011-01-22 00:41:44 +0100 [ 0.000000] Xen-provided physical RAM map: [ 0.000000] Xen: 0000000000000000 - 0000000020800000 (usable) [ 0.000000] Notice: NX (Execute Disable) protection missing in CPU or disabled in BIOS! [ 0.000000] last_pfn = 0x20800 max_arch_pfn = 0x10000000 [ 0.000000] init_memory_mapping: 0000000000000000-0000000020800000 [ 0.000000] RAMDISK: 00834000 - 0109b000 [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] 0MB HIGHMEM available. [ 0.000000] 520MB LOWMEM available. [ 0.000000] mapped low ram: 0 - 20800000 [ 0.000000] low ram: 0 - 20800000 [ 0.000000] Zone PFN ranges: [ 0.000000] DMA 0x00000000 -> 0x00001000 [ 0.000000] Normal 0x00001000 -> 0x00020800 [ 0.000000] HighMem empty [ 0.000000] Movable zone start PFN for each node [ 0.000000] early_node_map[2] active PFN ranges [ 0.000000] 0: 0x00000000 -> 0x00010000 [ 0.000000] 0: 0x00020800 -> 0x00020800 [ 0.000000] setup_percpu: NR_CPUS:32 nr_cpumask_bits:32 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 9 pages/cpu @cfb5e000 s16320 r0 d20544 u36864 [ 0.000000] Swapping MFNs for PFN 75f and fb5f (MFN 6a190 and 4c4a0) [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64496 [ 0.000000] Kernel command line: root=/dev/xvda1 root=/dev/xvda1 splash=silent showopts vga=0x314 [ 0.000000] bootsplash: silent mode. [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Initializing CPU#0 [ 0.000000] allocated 2662400 bytes of page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] Software IO TLB disabled [ 0.000000] Initializing HighMem for node 0 (00000000:00000000) [ 0.000000] Memory: 236676k/532480k available (4170k kernel code, 25468k reserved, 3036k data, 344k init, 0k highmem) [ 0.000000] virtual kernel memory layout: [ 0.000000] fixmap : 0xf5476000 - 0xf57ff000 (3620 kB) [ 0.000000] pkmap : 0xf5000000 - 0xf5200000 (2048 kB) [ 0.000000] vmalloc : 0xe1000000 - 0xf4ffe000 ( 319 MB) [ 0.000000] lowmem : 0xc0000000 - 0xe0800000 ( 520 MB) [ 0.000000] .init : 0xc070c000 - 0xc0762000 ( 344 kB) [ 0.000000] .data : 0xc0414b4e - 0xc070bda8 (3036 kB) [ 0.000000] .text : 0xc0002000 - 0xc0414b4e (4170 kB) [ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok. [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] RCU-based detection of stalled CPUs is disabled. [ 0.000000] NR_IRQS:2624 nr_irqs:600 16 [ 0.000000] Xen reported: 3014.628 MHz processor. [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [xvc-1] enabled [ 0.080023] Calibrating delay using timer specific routine.. 6103.54 BogoMIPS (lpj=12207088) [ 0.080065] pid_max: default: 32768 minimum: 301 [ 0.080167] Security Framework initialized [ 0.080202] AppArmor: AppArmor initialized [ 0.080248] Mount-cache hash table entries: 512 [ 0.080465] Initializing cgroup subsys ns [ 0.080481] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup. [ 0.080502] Initializing cgroup subsys cpuacct [ 0.080520] Initializing cgroup subsys memory [ 0.080545] Initializing cgroup subsys devices [ 0.080560] Initializing cgroup subsys freezer [ 0.080574] Initializing cgroup subsys net_cls [ 0.080590] Initializing cgroup subsys blkio [ 0.081706] SMP alternatives: switching to UP code [ 0.136225] Freeing SMP alternatives: 24k freed [ 0.140320] Brought up 1 CPUs [ 0.140635] devtmpfs: initialized [ 0.141352] regulator: core version 0.5 [ 0.141455] regulator: dummy: [ 0.161686] Time: 165:165:165 Date: 165/165/65 [ 0.161925] NET: Registered protocol family 16 [ 0.168204] Brought up 1 CPUs [ 0.169162] PCI: Fatal: No config space access function found [ 0.169187] PCI: setting up Xen PCI frontend stub [ 0.172706] bio: create slab <bio-0> at 0 [ 0.172892] ACPI: Interpreter disabled. [ 0.173091] suspend: event channel 6 [ 0.173091] xen_mem: Initialising balloon driver. [ 0.188392] SCSI subsystem initialized [ 0.188651] vgaarb: loaded [ 0.188873] PCI: System does not support PCI [ 0.188889] PCI: System does not support PCI [ 0.189077] NetLabel: Initializing [ 0.189091] NetLabel: domain hash size = 128 [ 0.189104] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.189134] NetLabel: unlabeled traffic allowed by default [ 0.189153] Switching to clocksource xen [ 0.191531] AppArmor: AppArmor Filesystem Enabled [ 0.191559] pnp: PnP ACPI: disabled [ 0.195091] NET: Registered protocol family 2 [ 0.195248] IP route cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.195698] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.195763] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.195823] TCP: Hash tables configured (established 8192 bind 8192) [ 0.195838] TCP reno registered [ 0.195849] UDP hash table entries: 128 (order: 0, 4096 bytes) [ 0.195871] UDP-Lite hash table entries: 128 (order: 0, 4096 bytes) [ 0.196106] NET: Registered protocol family 1 [ 0.196228] Unpacking initramfs... [ 0.215174] Freeing initrd memory: 8604k freed [ 0.222566] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.222848] audit: initializing netlink socket (disabled) [ 0.222884] type=2000 audit(1297161996.266:1): initialized [ 0.275185] VFS: Disk quotas dquot_6.5.2 [ 0.275263] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.275459] msgmni has been set to 132 [ 0.275939] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 0.275963] io scheduler noop registered [ 0.275975] io scheduler deadline registered [ 0.276059] io scheduler cfq registered (default) [ 0.276255] pci-stub: invalid id string "" [ 0.276666] Non-volatile memory driver v1.3 [ 0.276682] Linux agpgart interface v0.103 [ 0.277030] Xen virtual console successfully installed as xvc0 [ 0.284579] Console: switching to colour frame buffer device 100x37 [ 0.299499] console [tty0] enabled [ 0.300797] input: Xen Virtual Keyboard as /devices/virtual/input/input0 [ 0.300985] input: Xen Virtual Pointer as /devices/virtual/input/input1 [ 0.325534] Fixed MDIO Bus: probed [ 0.325665] PNP: No PS/2 controller found. Probing ports directly. [ 0.326619] i8042.c: No controller found. [ 0.326915] mice: PS/2 mouse device common for all mice [ 0.327396] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 0.327564] rtc_cmos: probe of rtc_cmos failed with error -38 [ 0.328314] TCP cubic registered [ 0.328430] NET: Registered protocol family 10 [ 0.329235] lo: Disabled Privacy Extensions [ 0.331653] Registering the dns_resolver key type [ 0.335224] libceph: loaded (mon/osd proto 15/24, osdmap 5/5 5/5) [ 0.337407] registered taskstats version 1 [ 0.339192] Magic number: 1:252:3141 [ 0.440127] XENBUS: Device with no driver: device/vbd/51712 [ 0.441863] XENBUS: Device with no driver: device/vbd/51728 [ 0.443564] XENBUS: Device with no driver: device/vif/0 [ 0.445347] /usr/src/packages/BUILD/kernel-xen-2.6.37/linux-2.6.37/drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 0.448952] Freeing unused kernel memory: 344k freed [ 0.454677] Write protecting the kernel text: 4172k [ 0.458888] Write protecting the kernel read-only data: 2808k [ 0.595103] netfront: Initialising virtual ethernet driver. [ 1.249825] xen-vbd: registered block device major 202 [ 1.251574] blkfront: xvda: barriers enabled [ 1.273145] xvda: xvda1 [ 1.361817] blkfront: xvdb: barriers enabled [ 1.464599] udev[66]: starting version 165 [ 2.380484] kjournald starting. Commit interval 15 seconds [ 2.383096] EXT3-fs (xvda1): using internal journal [ 2.384892] EXT3-fs (xvda1): mounted filesystem with ordered data mode [ 4.004478] udev[208]: starting version 165 [ 7.813948] device-mapper: uevent: version 1.0.3 [ 7.815689] device-mapper: ioctl: 4.18.0-ioctl (2010-06-29) initialised: dm-devel@redhat.com [ 8.177677] blkfront: xvda: empty write barrier op failed [ 8.179465] blkfront: xvda: barriers disabled [ 10.816230] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 10.816243] EDD information not available. [ 13.180548] BUG: unable to handle kernel NULL pointer dereference at (null) [ 13.180574] IP: [<e12dd20e>] netif_poll+0x73e/0x860 [xennet] [ 13.180598] *pdpt = 000000004d215001 *pde = 0000000000000000 [ 13.180614] Oops: 0000 [#1] SMP [ 13.180628] last sysfs file: /sys/devices/xen/vif-0/net/eth0/type [ 13.180642] Modules linked in: dm_mod joydev xenblk cdrom xennet reiserfs [ 13.180668] [ 13.180679] Pid: 926, comm: ip Not tainted 2.6.37-20-xen #1 / [ 13.180690] EIP: 0061:[<e12dd20e>] EFLAGS: 00010246 CPU: 0 [ 13.180705] EIP is at netif_poll+0x73e/0x860 [xennet] [ 13.180717] EAX: 00000008 EBX: cf464e80 ECX: 00000800 EDX: ce4f9850 [ 13.180729] ESI: 00000000 EDI: ce548440 EBP: cf464e98 ESP: cf40bef0 [ 13.180741] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0069 [ 13.180753] Process ip (pid: 926, ti=cf40a000 task=ce6bb2b0 task.ti=cf540000) [ 13.180765] Stack: [ 13.180772] cf40bf4c cf40bf80 cf40bf6c cf40bf5c cf40bf4c 00000000 0000002d 00000001 [ 13.180802] 00000040 ce548000 ce4ab140 00000019 00000040 0000002e ce548474 0000002c [ 13.180833] 00400007 00000000 00000000 00000000 00000000 00000000 00000000 cf40bf4c [ 13.180864] Call Trace: [ 13.180897] [<c032d6fa>] net_rx_action+0x13a/0x250 [ 13.180920] [<c00427b6>] __do_softirq+0xb6/0x1d0 [ 13.180940] [<c00079e9>] do_softirq+0x69/0xf0 [ 13.180958] [<0000000f>] 0xf [ 13.180967] Code: ff 8d 74 26 00 89 d8 e8 e1 fc 04 df e9 fc fd ff ff 8d 74 26 00 66 83 f8 08 0f 85 8a fe ff ff 8b b3 9c 00 00 00 8b 93 a4 00 00 00 <0f> b6 06 83 e0 0f 8d 04 86 39 d0 0f 83 6d fe ff ff 89 c1 66 2b [ 13.181118] EIP: [<e12dd20e>] netif_poll+0x73e/0x860 [xennet] SS:ESP 0069:cf40bef0 [ 13.181141] CR2: 0000000000000000 [ 13.181160] ---[ end trace 110ebd979901cae4 ]--- [ 13.181177] Kernel panic - not syncing: Fatal exception in interrupt [ 13.181193] Pid: 926, comm: ip Tainted: G D 2.6.37-20-xen #1 [ 13.181208] Call Trace: [ 13.181231] [<c00098f3>] try_stack_unwind+0x173/0x190 [ 13.181251] [<c0007b3f>] dump_trace+0x3f/0xe0 [ 13.181273] [<c000995b>] show_trace_log_lvl+0x4b/0x60 [ 13.181299] [<c0009988>] show_trace+0x18/0x20 [ 13.181327] [<c040a44a>] dump_stack+0x6d/0x72 [ 13.181353] [<c040a4a6>] panic+0x57/0x168 [ 13.181379] [<c040e4ea>] oops_end+0x10a/0x110 [ 13.181406] [<c0018bcf>] bad_area_nosemaphore+0xf/0x20 [ 13.181426] [<c04108a6>] do_page_fault+0x3e6/0x490 [ 13.181455] [<c040d988>] error_code+0x30/0x38 [ 13.181482] [<e12dd20e>] netif_poll+0x73e/0x860 [xennet] [ 13.181516] [<c032d6fa>] net_rx_action+0x13a/0x250 [ 13.181538] [<c00427b6>] __do_softirq+0xb6/0x1d0 [ 13.181564] [<c00079e9>] do_softirq+0x69/0xf0 [ 13.181588] [<0000000f>] 0xf Actual Results: kernel panic Expected Results: no kernel panic domU config is: <domain type='xen'> <name>factory-0</name> <description>"None"</description> <uuid>8852b6c0-27b9-8a2b-f773-0bd427df7298</uuid> <memory>524288</memory> <currentMemory>262144</currentMemory> <vcpu>1</vcpu> destroy destroy destroy <clock sync='utc'/> <keymap>en-us</keymap> <os type='opensuse11'> <type>linux</type> <bootloader>/usr/bin/pygrub</bootloader> <bootargs>--entry=xvda2:/boot/vmlinuz-xen,/boot/initrd-xen</bootargs> <cmdline> </cmdline> </os> <devices> <disk type='block' device='disk'> <driver name='phy'/> <source dev='/dev/disk-a/factory-0'/> <target dev='xvda'/> </disk> <disk type='file' device='cdrom'> <driver name='file'/> <source file='/root/openSUSE-DVD-Build1034-i586.iso'/> <target dev='xvdb'/> <readonly/> </disk> <interface type='bridge' model='para'> <source bridge='br0'/> <mac address='00:16:3e:10:12:cc'/> <script path='/etc/xen/scripts/vif-bridge'/> </interface> <graphics type='vnc'/> </devices> </domain> The above config works fine with the the openSUSE 11.3 kernel (2.6.34.7-0.7-xen). It broke after I zypper dup'd the domU from 11.3 to 11.4 M6. The same problem is evident if I install a clean domU from the 11.4 DVD, indicating it's not a problem with the upgrade. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.