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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen0 crash dump (/dev/ram0 root) possibly of interest
Looks to me like it should work -- you have enough contiguous RAM to store the initrd image. I just checked in new heap-initialisation code that takes into account the e820 memory map. I think there may still be a few bugs in it and you may be triggering one. It is worth trying a debug build of Xen and seeing if that gives any more info about the crash. -- Keir > I'm continuing to work on making a new XenCD as previously discussed here. > In > the course of that work, I've generated (actually, currently stuck on) the > enclosed crash dump. Thought I'd forward it for interest. > > To head off questions, you'll see references to a very large initrd (~114 > Mb). > The Xen dump may or not be related to this unusual usage. I've done both > large initrds, small initrds, and small initrds in the past which copy larger > filesystems to tmpfs. I've done huge initrds with success before, outside of > Xen. The numbers below are calculated automatically and should be big > enough, > though may not be aligned properly. > > Mark Williamson: if you see this, could you forward me a copy of the Xen 1.2 > CD you offered to do earlier? I'd like to see to see which initrd techniques > you used, if any. > > My GRUB config looks like: > > title xen > kernel /boot/xen dom0_mem=318464 com1=115200,8n1 console=com1,vga > ignorebiostables nmi=ignore sched=bvt conswitch=xy noreboot > module /boot/xen0-vmlinuz ramdisk_size=203776 root=/dev/ram0 max_loop=96 rw > console=ttyS0 vga=extended > module /boot/xen0-initrd > > I can provide access to the ISO if anyone cares, though it's obviously > non-functional currently. > > __ __ ____ ___ > \ \/ /___ _ __ |___ \ / _ \ > \ // _ \ '_ \ __) || | | | > / \ __/ | | | / __/ | |_| | > /_/\_\___|_| |_| |_____(_)___/ > > http://www.cl.cam.ac.uk/netos/xen > University of Cambridge Computer Laboratory > > Xen version 2.0 (jared@xxxxxxxxxxx) (gcc version 3.3.4 20040623 (Gentoo > Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) Thu Dec 30 10:51:11 PST 2004 > Latest ChangeSet: 2004/12/30 18:27:27 1.1624 41d4488f9fINTxUzyjoq2FnTn5AvMQ > > (XEN) Physical RAM map: > (XEN) 0000000000000000 - 000000000009f800 (usable) > (XEN) 000000000009f800 - 00000000000a0000 (reserved) > (XEN) 00000000000ca000 - 00000000000cc000 (reserved) > (XEN) 00000000000dc000 - 00000000000e0000 (reserved) > (XEN) 00000000000e4000 - 0000000000100000 (reserved) > (XEN) 0000000000100000 - 000000001eef0000 (usable) > (XEN) 000000001eef0000 - 000000001eefc000 (ACPI data) > (XEN) 000000001eefc000 - 000000001ef00000 (ACPI NVS) > (XEN) 000000001ef00000 - 000000001f000000 (usable) > (XEN) 00000000fec00000 - 00000000fec10000 (reserved) > (XEN) 00000000fee00000 - 00000000fee01000 (reserved) > (XEN) 00000000fffe0000 - 0000000100000000 (reserved) > (XEN) System RAM: 495MB (507452kB) > (XEN) Xen heap: 10MB (10776kB) > (XEN) CPU0: Before vendor init, caps: bfebfbff 00000000 00000000, vendor = 0 > (XEN) CPU#0: Hyper-Threading is disabled > (XEN) CPU caps: bfebfbff 00000000 00000000 00000000 > (XEN) Using scheduler: Borrowed Virtual Time (bvt) > (XEN) Initializing CPU#0 > (XEN) Detected 1197.895 MHz processor. > (XEN) Found and enabled local APIC! > (XEN) enabled ExtINT on CPU#0 > (XEN) ESR value before enabling vector: 00000000 > (XEN) ESR value after enabling vector: 00000000 > (XEN) Using local APIC timer interrupts. > (XEN) Calibrating APIC timer for CPU0... > (XEN) ..... CPU speed is 1197.8705 MHz. > (XEN) ..... Bus speed is 69.3984 MHz. > (XEN) ..... bus_scale = 0x00004711 > (XEN) Time init: > (XEN) .... System Time: 1451424ns > (XEN) .... cpu_freq: 00000000:47666D94 > (XEN) .... scale: 00000001:AB6A9983 > (XEN) .... Wall Clock: 1104628571s 10000us > (XEN) PCI: PCI BIOS revision 2.10 entry at 0xfd9a0, last bus=1 > (XEN) PCI: Using configuration type 1 > (XEN) PCI: Probing PCI hardware > (XEN) PCI: Probing PCI hardware (bus 00) > (XEN) PCI: Using IRQ router PIIX/ICH [8086/7110] at 00:07.0 > (XEN) PCI: Cannot allocate resource region 4 of device 00:07.1 > (XEN) Limiting direct PCI/PCI transfers. > (XEN) mtrr: v2.0 (20020519) > (XEN) *** LOADING DOMAIN 0 *** > (XEN) Xen-ELF header found: > 'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=2.0,VIRT_BASE=0xC0000000,LOADER=generic,PT_MODE_WRITABLE' > (XEN) PHYSICAL MEMORY ARRANGEMENT: > (XEN) Kernel image: 00c00000->00ffcd48 > (XEN) Initrd image: 00ffd000->08bbb000 > (XEN) Dom0 alloc.: 08c00000->1c300000 > (XEN) VIRTUAL MEMORY ARRANGEMENT: > (XEN) Loaded kernel: c0100000->c052a584 > (XEN) Init. ramdisk: c052b000->c80e9000 > (XEN) Phys-Mach map: c80e9000->c8136c00 > (XEN) Page tables: c8137000->c8159000 > (XEN) Start info: c8159000->c815a000 > (XEN) Boot stack: c815a000->c815b000 > (XEN) TOTAL: c0000000->c8400000 > (XEN) ENTRY ADDRESS: c0100000 > (XEN) Scrubbing DOM0 RAM: ....done. > (XEN) Initrd len 0x7bbe000, start at 0xc052b000 > (XEN) Scrubbing Free RAM: ......done. > (XEN) *** Serial input -> DOM0 (type 'CTRL-x' three times to switch input to > Xen). > Linux version 2.6.10-xen0 (jared@bear) (gcc version 3.3.4 20040623 (Gentoo > Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) #1 Thu Dec 30 11:13:55 PST 2004 > BIOS-provided physical RAM map: > Xen: 0000000000000000 - 0000000013700000 (usable) > 311MB LOWMEM available. > DMI not present. > Built 1 zonelists > Kernel command line: ramdisk_size=203776 root=/dev/ram0 max_loop=96 rw > console=ttyS0 vga=extended > Initializing CPU#0 > PID hash table entries: 2048 (order: 11, 32768 bytes) > Xen reported: 1197.895 MHz processor. > Using tsc for high-res timesource > Console: colour VGA+ 80x25 > (XEN) BUG at domain.c:152 > (XEN) CPU: 0 > (XEN) EIP: 0808:[<fc50603e>] > (XEN) EFLAGS: 00201296 > (XEN) eax: 00000000 ebx: fc5fd9e0 ecx: 00000000 edx: fc4b8f00 > (XEN) esi: 000d98f0 edi: c04f5200 ebp: 00000000 esp: fc503f9c > (XEN) ds: 0810 es: 0810 fs: 0810 gs: 0810 ss: 0810 > (XEN) Stack trace from ESP=fc503f9c: > (XEN) fc529841 fc529882 00000098 000d98f0 [fc527ae6] 00000808 fc5fd9e0 > 00000000 > (XEN) 00000001 00000000 c8159200 c04f5200 00000000 00020000 000d98f0 > 00000061 > (XEN) 000098f0 00201246 c04a1fb4 00000069 0000007b 0000007b 00000000 > 00000000 > (XEN) fc5fd9e0 > (XEN) Call Trace from ESP=fc503f9c: [<fc527ae6>] > > **************************************** > CPU0 FATAL TRAP: vector = 6 (invalid operand) > [error_code=0000] > Aieee! CPU0 is toast... > **************************************** > > Reboot in five seconds... > (XEN) Reboot disabled on cmdline: require manual reset > > > > ------------------------------------------------------- > The SF.Net email is sponsored by: Beat the post-holiday blues > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/xen-devel ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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