search for: 7f800000

...HVM14: [00]: 00000000:00000000 - 00000000:0009e000: RAM (XEN) HVM14: [01]: 00000000:0009e000 - 00000000:000a0000: RESERVED (XEN) HVM14: HOLE: 00000000:000a0000 - 00000000:000e0000 (XEN) HVM14: [02]: 00000000:000e0000 - 00000000:00100000: RESERVED (XEN) HVM14: [03]: 00000000:00100000 - 00000000:7f800000: RAM (XEN) HVM14: HOLE: 00000000:7f800000 - 00000000:fc000000 (XEN) HVM14: [04]: 00000000:fc000000 - 00000001:00000000: RESERVED (XEN) HVM14: Invoking ROMBIOS ... (XEN) HVM14: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $ (XEN) stdvga.c:147:d14 entering stdvga and caching modes (XEN) HVM14: VGA...

We created a 64bit SLES11 SP1 guest, and then used a script to change memory (using mem-set command) periodically (in 1 second): set 1G, set 2G, set 1G, set 2G, and so on. After a few minutes, we encountered QEMU exit due to SIGBUS error. Below is the call trace captured by gdb: The call trace: Program received signal SIGBUS, Bus error. 0x00007f94f74773d7 in memcpy () from /lib64/libc.so.6 (gdb)

...0 Deferred user32<elf> \-PE 7f450000-7f557000 \ user32 ELF 7f560000-7f5bf000 Deferred shlwapi<elf> \-PE 7f580000-7f5bf000 \ shlwapi ELF 7f5c0000-7f6ed000 Deferred shell32<elf> \-PE 7f5e0000-7f6ed000 \ shell32 ELF 7f800000-7fa6c000 Deferred en_us.utf-8.so.3 PE 7fac0000-7fad9000 Deferred litehtml ELF 7fb00000-7fb1e000 Deferred methods_unicode.so.3 ELF 7fb40000-7fc6f000 Deferred kernel32<elf> \-PE 7fb60000-7fc6f000 \ kernel32 ELF 7fdd0000-7fde5000 Deferred libmp....

...1000-7f76a000 Deferred ddraw<elf> \-PE 7f730000-7f76a000 \ ddraw ELF 7f76a000-7f7ea000 Deferred gdi32<elf> \-PE 7f780000-7f7ea000 \ gdi32 ELF 7f7ea000-7f91c000 Deferred user32<elf> \-PE 7f800000-7f91c000 \ user32 ELF 7f91c000-7f9de000 Deferred comctl32<elf> \-PE 7f930000-7f9de000 \ comctl32 ELF 7f9de000-7fa20000 Deferred advapi32<elf> \-PE 7f9f0000-7fa20000 \ advapi32 ELF 7fc...

I''ve had domU''s hickup a few times with latest unstable, and I guess this can be expected. Is there a procedure in place to report these problems? For exampe: Unable to handle kernel paging request at virtual address c12b46c0 printing eip: cpanel cpanel.mydomain c02555f7 *pde = ma 7e9fc067 pa 00002067 *pte = ma 00000000 pa 55555000 Oops: 0002 [#1] PREEMPT SMP Modules

...: 000000000009fc00 - 0000000000100000 (reserved) [ 0.000000] Xen: 0000000000100000 - 0000000075fe1000 (usable) [ 0.000000] Xen: 000000007f7b0000 - 000000007f7be000 (ACPI data) [ 0.000000] Xen: 000000007f7be000 - 000000007f7e0000 (ACPI NVS) [ 0.000000] Xen: 000000007f7e0000 - 000000007f800000 (reserved) [ 0.000000] Xen: 00000000e0000000 - 00000000f0000000 (reserved) [ 0.000000] Xen: 00000000fec00000 - 00000000fec01000 (reserved) [ 0.000000] Xen: 00000000fee00000 - 00000000fee01000 (reserved) [ 0.000000] Xen: 00000000ff780000 - 0000000100000000 (reserved) [ 0.000000] D...

...(d2) BIOS map: (d2) 10000-100d3: Scratch space (d2) e0000-fffff: Main BIOS (d2) E820 table: (d2) [00]: 00000000:00000000 - 00000000:000a0000: RAM (d2) HOLE: 00000000:000a0000 - 00000000:000e0000 (d2) [01]: 00000000:000e0000 - 00000000:00100000: RESERVED (d2) [02]: 00000000:00100000 - 00000000:7f800000: RAM (d2) HOLE: 00000000:7f800000 - 00000000:fc000000 (d2) [03]: 00000000:fc000000 - 00000001:00000000: RESERVED (d2) Invoking SeaBIOS ... (d2) SeaBIOS (version rel-1.7.1-2-g30ef08f-20131202_091117-phenom.dumpdata.com) (d2) (d2) Found Xen hypervisor signature at 40000000 (d2) xen: copy e820... (...

...A BIOS (XEN) HVM1: Loading ACPI ... (XEN) HVM1: vm86 TSS at fc00f700 (X: [01]: 00000000:0009e000 - 00000000:000a0000: RESERVED (XEN) HVM1: HOLE: 00000000:000a0000 - 00000000:000e0000 (XEN) HVM1: [02]: 00000000:000e0000 - 00000000:00100000: RESERVED (XEN) HVM1: [03]: 00000000:00100000 - 00000000:7f800000: RAM (XEN) HVM1: HOLE: 00000000:7f800000 - 00000000:fc000000 (XEN) HVM1: [04]: 00000000:fc000000 - 00000001:00000000: RESERVED (XEN) HVM1: Invoking ROMBIOS ... (XEN) HVM1: $Revision: 1.221 $ $Date: 2008/12/07 17:32:29 $ Mar 12 16:29:25 tst032 init: process ''/bin/sh'' (pid 6100)...

...; 7cb91000-7cc54fff : reserved > 7cc55000-7d5a2fff : System RAM > 7d5a3000-7d652fff : reserved > 7d653000-7f68efff : System RAM > 7f68f000-7f6defff : reserved > 7f6df000-7f7defff : ACPI Non-volatile Storage > 7f7df000-7f7fefff : ACPI Tables > 7f7ff000-7f7fffff : System RAM > 7f800000-8fffffff : reserved > 80000000-8fffffff : PCI MMCONFIG 0000 [bus 00-ff] > 80000000-8fffffff : pnp 00:0a > 90000000-fdffffff : PCI Bus 0000:00 > 90000000-900fffff : PCI Bus 0000:15 > 90000000-9007ffff : 0000:15:00.0 > 90100000-901fffff : PCI Bus 0000:1a > 90100000-90...