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Message-ID: <20110726205121.GA29604@dumpdata.com> Date: Tue, 26 Jul 2011 16:51:21 -0400 From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> To: Andrew Lutomirski <luto@....edu> Cc: jj@...osbits.net, linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com, arjan@...radead.org, JBeulich@...ell.com, richard.weinberger@...il.com, mikpe@...uu.se, andi@...stfloor.org, brgerst@...il.com, Louis.Rilling@...labs.com, Valdis.Kletnieks@...edu, pageexec@...email.hu, mingo@...e.hu, Jeremy Fitzhardinge <jeremy@...p.org>, Stefano Stabellini <stefano.stabellini@...citrix.com>, Ian Campbell <Ian.Campbell@...citrix.com> Subject: Re: git commit 9fd67b4ed0714ab718f1f9bd14c344af336a6df7 (x86-64: Give vvars their own page) breaks Xen PV guests (64-bit). > That one means that the vvar fixmap isn't working. Can you try the > attached patch? Sure. Albeit it looks to be missing a check for the 0xe033 cs? This is what I get from launching a guest: (early) [ 0.000000] Initializing cgroup subsys cpuset (early) [ 0.000000] Initializing cgroup subsys cpu (early) [ 0.000000] Linux version 3.0.0-05046-ge08dc13-dirty (konrad@...nom) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #1 SMP PREEMPT Tue Jul 26 16:24:01 EDT 2011 (early) [ 0.000000] Command line: console=hvc0 debug earlyprintk=xenboot test=test (early) [ 0.000000] ACPI in unprivileged domain disabled (early) [ 0.000000] released 0 pages of unused memory (early) [ 0.000000] Set 0 page(s) to 1-1 mapping. (early) [ 0.000000] BIOS-provided physical RAM map: (early) [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) (early) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) [ 0.000000] Xen: 0000000000100000 - 0000000080800000 (usable) (early) [ 0.000000] bootconsole [xenboot0] enabled (early) [ 0.000000] NX (Execute Disable) protection: active (early) [ 0.000000] DMI not present or invalid. (early) [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (early) (usable)(early) ==> (early) (reserved)(early) (early) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (early) (usable)(early) (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] last_pfn = 0x80800 max_arch_pfn = 0x400000000 (early) [ 0.000000] initial memory mapped : 0 - 1028f000 (early) [ 0.000000] Base memory trampoline at [ffff88000009b000] 9b000 size 20480 (early) [ 0.000000] init_memory_mapping: 0000000000000000-0000000080800000 (early) [ 0.000000] 0000000000 - 0080800000 page 4k (early) [ 0.000000] kernel direct mapping tables up to 80800000 @ 7fbf8000-80000000 (early) [ 0.000000] xen: setting RW the range 7ff76000 - 80000000 (early) [ 0.000000] RAMDISK: 01b76000 - 1028f000 (early) [ 0.000000] No NUMA configuration found (early) [ 0.000000] Faking a node at 0000000000000000-0000000080800000 (early) [ 0.000000] Initmem setup node 0 0000000000000000-0000000080800000 (early) [ 0.000000] NODE_DATA [000000007fffb000 - 000000007fffffff] (early) [ 0.000000] Zone PFN ranges: (early) [ 0.000000] DMA (early) 0x00000010 -> 0x00001000 (early) [ 0.000000] DMA32 (early) 0x00001000 -> 0x00100000 (early) [ 0.000000] Normal (early) empty (early) [ 0.000000] Movable zone start PFN for each node (early) [ 0.000000] early_node_map[2] active PFN ranges (early) [ 0.000000] 0: 0x00000010 -> 0x000000a0 (early) [ 0.000000] 0: 0x00000100 -> 0x00080800 (early) [ 0.000000] On node 0 totalpages: 526224 (early) [ 0.000000] DMA zone: 56 pages used for memmap (early) [ 0.000000] DMA zone: 5 pages reserved (early) [ 0.000000] DMA zone: 3923 pages, LIFO batch:0 (early) [ 0.000000] DMA32 zone: 7140 pages used for memmap (early) [ 0.000000] DMA32 zone: 515100 pages, LIFO batch:31 (early) [ 0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs (early) [ 0.000000] No local APIC present (early) [ 0.000000] APIC: disable apic facility (early) [ 0.000000] APIC: switched to apic NOOP (early) [ 0.000000] nr_irqs_gsi: 16 (early) [ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000 (early) [ 0.000000] Allocating PCI resources starting at 80800000 (gap: 80800000:7f800000) (early) [ 0.000000] Booting paravirtualized kernel on Xen (early) [ 0.000000] Xen version: 4.2-unstable (preserve-AD) (early) [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:4 nr_node_ids:1 (early) [ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88007fb88000 s82048 r8192 d24448 u114688 (early) [ 0.000000] pcpu-alloc: s82048 r8192 d24448 u114688 alloc=28*4096(early) (early) [ 0.000000] pcpu-alloc: (early) [0] (early) 0 (early) [0] (early) 1 (early) [0] (early) 2 (early) [0] (early) 3 (early) (early) [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 519023 (early) [ 0.000000] Policy zone: DMA32 (early) [ 0.000000] Kernel command line: console=hvc0 debug earlyprintk=xenboot test=test (early) [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) (early) [ 0.000000] Checking aperture... (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area (early) [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! (early) [ 0.000000] Memory: 1810140k/2105344k available (5942k kernel code, 448k absent, 294756k reserved, 2808k data, 692k init) (early) [ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 (early) [ 0.000000] Preemptible hierarchical RCU implementation. (early) [ 0.000000] NR_IRQS:16640 nr_irqs:304 16 (early) [ 0.000000] Console: colour dummy device 80x25 (early) [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled, bootconsole disabled (early) [ 0.000000] console [hvc0] enabled, bootconsole disabled [ 0.000000] Xen: using vcpuop timer interface [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] Detected 3000.212 MHz processor. [ 0.000000] Marking TSC unstable due to TSCs unsynchronized [ 0.000999] Calibrating delay loop (skipped), value calculated using timer frequency.. 6000.42 BogoMIPS (lpj=3000212) [ 0.000999] pid_max: default: 32768 minimum: 301 [ 0.000999] Security Framework initialized [ 0.000999] SELinux: Initializing. [ 0.000999] SELinux: Starting in permissive mode [ 0.000999] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.001391] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.001664] Mount-cache hash table entries: 256 [ 0.001828] Initializing cgroup subsys cpuacct [ 0.001838] Initializing cgroup subsys freezer [ 0.001879] tseg: 0000000000 [ 0.001891] CPU: Physical Processor ID: 0 [ 0.001896] CPU: Processor Core ID: 3 [ 0.001952] SMP alternatives: switching to UP code [ 0.002067] cpu 0 spinlock event irq 17 [ 0.002113] Performance Events: [ 0.002118] no APIC, boot with the "lapic" boot parameter to force-enable it. [ 0.002124] no hardware sampling interrupt available. [ 0.002145] Broken PMU hardware detected, using software events only. [ 0.008116] MCE: In-kernel MCE decoding enabled. [ 0.008136] NMI watchdog disabled (cpu0): hardware events not enabled [ 0.014060] installing Xen timer for CPU 1 [ 0.014116] cpu 1 spinlock event irq 23 [ 0.014192] SMP alternatives: switching to SMP code [ 0.015097] NMI watchdog disabled (cpu1): hardware events not enabled [ 0.021064] installing Xen timer for CPU 2 [ 0.021119] cpu 2 spinlock event irq 29 [ 0.021369] NMI watchdog disabled (cpu2): hardware events not enabled [ 0.027065] installing Xen timer for CPU 3 [ 0.027119] cpu 3 spinlock event irq 35 [ 0.027356] NMI watchdog disabled (cpu3): hardware events not enabled [ 0.029021] Brought up 4 CPUs [ 0.029137] kworker/u:0 used greatest stack depth: 5496 bytes left [ 0.029174] Grant table initialized [ 0.048869] RTC time: 165:165:165, date: 165/165/65 [ 0.048909] NET: Registered protocol family 16 [ 0.049143] Extended Config Space enabled on 0 nodes [ 0.050326] PCI: setting up Xen PCI frontend stub [ 0.050341] PCI: pci_cache_line_size set to 64 bytes [ 0.059045] bio: create slab <bio-0> at 0 [ 0.060044] ACPI: Interpreter disabled. [ 0.060044] xen/balloon: Initialising balloon driver. [ 0.060044] last_pfn = 0x80800 max_arch_pfn = 0x400000000 [ 0.062138] xen-balloon: Initialising balloon driver. [ 0.063082] vgaarb: loaded [ 0.063082] usbcore: registered new interface driver usbfs [ 0.063082] usbcore: registered new interface driver hub [ 0.063082] usbcore: registered new device driver usb [ 0.064035] PCI: System does not support PCI [ 0.064035] PCI: System does not support PCI [ 0.064054] NetLabel: Initializing [ 0.064054] NetLabel: domain hash size = 128 [ 0.064054] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.064054] NetLabel: unlabeled traffic allowed by default [ 0.064085] Switching to clocksource xen [ 0.064406] Switched to NOHz mode on CPU #0 [ 0.064962] Switched to NOHz mode on CPU #2 [ 0.064995] Switched to NOHz mode on CPU #1 [ 0.065071] Switched to NOHz mode on CPU #3 [ 0.066298] pnp: PnP ACPI: disabled [ 0.071088] PCI: max bus depth: 0 pci_try_num: 1 [ 0.071143] NET: Registered protocol family 2 [ 0.071324] IP route cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.072659] TCP established hash table entries: 262144 (order: 10, 4194304 bytes) [ 0.073918] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) [ 0.074217] TCP: Hash tables configured (established 262144 bind 65536) [ 0.074228] TCP reno registered [ 0.074249] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.074276] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.074364] NET: Registered protocol family 1 [ 0.074542] RPC: Registered named UNIX socket transport module. [ 0.074550] RPC: Registered udp transport module. [ 0.074555] RPC: Registered tcp transport module. [ 0.074559] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.074566] PCI: CLS 0 bytes, default 64 [ 0.074682] Trying to unpack rootfs image as initramfs... [ 0.318696] Freeing initrd memory: 236644k freed [ 0.378844] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.380209] Machine check injector initialized [ 0.380975] microcode: CPU0: patch_level=0x010000bf [ 0.381010] microcode: CPU1: patch_level=0x010000bf [ 0.381083] microcode: CPU2: patch_level=0x010000bf [ 0.381179] microcode: CPU3: patch_level=0x010000bf [ 0.381256] microcode: Microcode Update Driver: v2.00 <tigran@...azian.fsnet.co.uk>, Peter Oruba [ 0.381648] audit: initializing netlink socket (disabled) [ 0.381670] type=2000 audit(1311713301.894:1): initialized [ 0.395872] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.401251] VFS: Disk quotas dquot_6.5.2 [ 0.401400] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.402131] NTFS driver 2.1.30 [Flags: R/W]. [ 0.402462] msgmni has been set to 3997 [ 0.402606] SELinux: Registering netfilter hooks [ 0.403425] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 0.403434] io scheduler noop registered [ 0.403452] io scheduler deadline registered [ 0.403554] io scheduler cfq registered (default) [ 0.403897] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.449804] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.515715] Non-volatile memory driver v1.3 [ 0.515740] Linux agpgart interface v0.103 [ 0.516231] [drm] Initialized drm 1.1.0 20060810 [ 0.518833] brd: module loaded [ 0.520221] loop: module loaded [ 0.520875] Fixed MDIO Bus: probed [ 0.521447] tun: Universal TUN/TAP device driver, 1.6 [ 0.521461] tun: (C) 1999-2004 Max Krasnyansky <maxk@...lcomm.com> [ 0.521835] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.521844] ehci_hcd: block sizes: qh 112 qtd 96 itd 192 sitd 96 [ 0.521931] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.521937] ohci_hcd: block sizes: ed 80 td 96 [ 0.522023] uhci_hcd: USB Universal Host Controller Interface driver [ 0.522222] usbcore: registered new interface driver usblp [ 0.522307] usbcore: registered new interface driver libusual [ 0.522613] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 0.523442] i8042: No controller found [ 0.523595] mousedev: PS/2 mouse device common for all mice [ 0.564242] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 0.564478] rtc_cmos: probe of rtc_cmos failed with error -38 [ 0.564858] cpuidle: using governor ladder [ 0.564866] cpuidle: using governor menu [ 0.564872] EFI Variables Facility v0.08 2004-May-17 [ 0.564965] zram: num_devices not specified. Using default: 1 [ 0.564973] zram: Creating 1 devices ... [ 0.565379] Netfilter messages via NETLINK v0.30. [ 0.565401] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 0.565729] ctnetlink v0.93: registering with nfnetlink. [ 0.566215] ip_tables: (C) 2000-2006 Netfilter Core Team [ 0.566278] TCP cubic registered [ 0.566282] Initializing XFRM netlink socket [ 0.566843] NET: Registered protocol family 10 [ 0.567453] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 0.567512] IPv6 over IPv4 tunneling driver [ 0.568324] NET: Registered protocol family 17 [ 0.568355] Registering the dns_resolver key type [ 0.568867] PM: Hibernation image not present or could not be loaded. [ 0.568891] registered taskstats version 1 [ 0.568926] XENBUS: Device with no driver: device/vif/0 [ 0.568932] XENBUS: Device with no driver: device/vfb/0 [ 0.568937] XENBUS: Device with no driver: device/vkbd/0 [ 0.568951] Magic number: 1:252:3141 [ 0.569157] powernow-k8: Found 1 AMD Phenom(tm) II X6 1075T Processor (4 cpu cores) (version 2.20.00) [ 0.569202] powernow-k8: Core Performance Boosting: on. [ 0.569220] [Firmware Bug]: powernow-k8: No compatible ACPI _PSS objects found. [ 0.569221] [Firmware Bug]: powernow-k8: Try again with latest BIOS. [ 0.569692] Freeing unused kernel memory: 692k freed [ 0.569888] Write protecting the kernel read-only data: 8192k [ 0.572708] Freeing unused kernel memory: 180k freed [ 0.572901] Freeing unused kernel memory: 328k freed [ 0.574137] init[1] illegal int 0xcc from 32-bit mode ip:ffffffffff600400 cs:e033 sp:7fff741c01a8 ax:ffffffffff600400 si:7fd5c2af52bf di:7fff741c0278 [ 0.574370] init used greatest stack depth: 5104 bytes left [ 0.574382] Kernel panic - not syncing: Attempted to kill init! [ 0.574389] Pid: 1, comm: init Not tainted 3.0.0-05046-ge08dc13-dirty #1 [ 0.574395] Call Trace: [ 0.574414] [<ffffffff815be353>] panic+0x96/0x1ad [ 0.574422] [<ffffffff810845d1>] ? get_parent_ip+0x11/0x50 [ 0.574430] [<ffffffff810966ac>] do_exit+0x93c/0x940 [ 0.574437] [<ffffffff810966fc>] do_group_exit+0x4c/0xc0 [ 0.574445] [<ffffffff810a84cf>] get_signal_to_deliver+0x20f/0x5c0 [ 0.574453] [<ffffffff81049473>] do_signal+0x63/0x710 [ 0.574461] [<ffffffff810402b2>] ? check_events+0x12/0x20 [ 0.574467] [<ffffffff810845d1>] ? get_parent_ip+0x11/0x50 [ 0.574475] [<ffffffff815c4b2d>] ? sub_preempt_count+0x9d/0xd0 [ 0.574482] [<ffffffff815c1607>] ? _raw_spin_unlock_irqrestore+0x27/0x50 [ 0.574489] [<ffffffff810a702d>] ? force_sig_info+0x9d/0x110 [ 0.574496] [<ffffffff81049b85>] do_notify_resume+0x65/0x80 [ 0.574504] [<ffffffff8104deee>] ? do_emulate_vsyscall+0x5e/0x190 [ 0.574511] [<ffffffff815c1b3c>] retint_signal+0x48/0x8c Parsing config file /root/pv.xm Daemon running with PID 29568 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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