if I use a pvops domU kernel version 2.6.32.18 crash works fine. However if I use a pvops domU kernel version 2.6.32.21 I get the error messages:
crash: cannot find mfn 874307 (0xd5743) in page index
crash: cannot read/find cr3 page
Any suggestions as to what is wrong?
-Thomas
(1) domU information:
cat /proc/version
Linux version 2.6.32.21-1 (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #1 SMP Tue Sep 7 15:40:55 PDT 2010
cat /proc/cmdline
root=UUID=ee471711-e94d-4ff1-973c-e45526adea25 ro crashkernel=384M-2G:64M,2G-:128M iommu=soft swiotlb=force console=hvc0,115200n8 ip=:127.0.255.255::::eth0:dhcp
cat /sys/kernel/kexec_crash_loaded
1
xen.cfg is using on_crash = 'coredump-restart'
core is generated by executing echo c > /proc/sysrq-trigger on the domU.
(2) core file is generated by the domU crash
-rw------- 1 root root 2145653832 Sep 9 09:42 /var/xen/dump/xyz/2010-0909-0942.13-xyz.1.core
(3) crash information
crash-d99 /boot/vmlinux-2.6.32.21-1 /var/xen/dump/xyz/2010-0909-0942.13-xyz.1.core
crash 5.0.7
...
crash: /var/xen/dump/xyz/2010-0909-0942.13-xyz.1.core: not a netdump ELF dumpfile
crash: /var/xen/dump/xyz/2010-0909-0942.13-xyz.1.core: not a kdump ELF dumpfile
flags: 109 (XENDUMP_LOCAL|XC_CORE_ELF|XC_CORE_P2M_CREATE)
xfd: 3
page_size: 4096
ofp: 0
page: 1d67c70
panic_pc: 0
panic_sp: 0
accesses: 0
cache_hits: 0
last_pfn: -1
redundant: 0
poc[5000]: 1d68c80 (none used)
xc_save:
nr_pfns: 0 (0x0)
vmconfig_size: 0 (0x0)
vmconfig_buf: 0
p2m_frame_list: 0 (none)
pfns_not: 0
pfns_not_offset: 0
vcpu_ctxt_offset: 0
shared_info_page_offset: 0
region_pfn_type: 0
batch_count: 0
batch_offsets: 0 (none)
ia64_version: 0
ia64_page_offsets: 0 (none)
xc_core:
header:
xch_magic: f00febed (XC_CORE_MAGIC)
xch_nr_vcpus: 7
xch_nr_pages: 521792 (0x7f640)
xch_ctxt_offset: 1896 (0x768)
xch_index_offset: 2137305088 (0x7f64b000)
xch_pages_offset: 45056 (0xb000)
elf_class: ELFCLASS64
elf_strtab_offset: 2145653760 (0x7fe41400)
format_version: 0000000000000001
shared_info_offset: 38072 (0x94b8)
elf_index_pfn[128]:
0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1
0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1
0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1 0:-1
last_batch:
index: 0 (0 - 0)
accesses: 0
duplicates: 0
elf32: 0
elf64: 1d67040
p2m_frames: 0
p2m_frame_index_list:
Elf64_Ehdr:
e_ident: \177ELF
e_ident[EI_CLASS]: 2 (ELFCLASS64)
e_ident[EI_DATA]: 1 (ELFDATA2LSB)
e_ident[EI_VERSION]: 1 (EV_CURRENT)
e_ident[EI_OSABI]: 0 (ELFOSABI_SYSV)
e_ident[EI_ABIVERSION]: 1
e_type: 4 (ET_CORE)
e_machine: 62 (EM_X86_64)
e_version: 1 (EV_CURRENT)
e_entry: 0
e_phoff: 0
e_shoff: 40
e_flags: 0
e_ehsize: 40
e_phentsize: 38
e_phnum: 0
e_shentsize: 40
e_shnum: 7
e_shstrndx: 1
Elf64_Shdr:
sh_name: 0 ""
sh_type: 0 (SHT_NULL)
sh_flags: 0
sh_addr: 0
sh_offset: 0
sh_size: 0
sh_link: 0
sh_info: 0
sh_addralign: 0
sh_entsize: 0
Elf64_Shdr:
sh_name: 1 ".shstrtab"
sh_type: 3 (SHT_STRTAB)
sh_flags: 0
sh_addr: 0
sh_offset: 7fe41400
sh_size: 48
sh_link: 0
sh_info: 0
sh_addralign: 0
sh_entsize: 0
.shstrtab
.note.Xen
.xen_prstatus
.xen_shared_info
.xen_pages
.xen_p2m
Elf64_Shdr:
sh_name: b ".note.Xen"
sh_type: 7 (SHT_NOTE)
sh_flags: 0
sh_addr: 0
sh_offset: 200
sh_size: 568
sh_link: 0
sh_info: 0
sh_addralign: 0
sh_entsize: 0
namesz: 4
descz: 0
type: 2000000 (XEN_ELFNOTE_DUMPCORE_NONE)
name: Xen
(empty)
namesz: 4
descz: 32
type: 2000001 (XEN_ELFNOTE_DUMPCORE_HEADER)
name: Xen
00000000f00febed 0000000000000007
000000000007f640 0000000000001000
namesz: 4
descz: 1280
type: 2000002 (XEN_ELFNOTE_DUMPCORE_XEN_VERSION)
0000000000000004 0000000000000000
ff003463722d312e 2400000000000008
7372657620636367 2e342e34206e6f69
746e756255282033 2d332e342e342075
3575746e75627534 ffff82c480002029
0000000000000001 0000000001aa0660
ffff006567646562 0000000000000001
006d6f632e69736c ffff880000000001
ffff82c480367c0e ffff82c400000100
20677541206e7553 34343a3930203120
205444502039323a ffff820030313032
2d302e332d6e6578 782034365f363878
782d302e332d6e65 68207032335f3638
782d302e332d6d76 76682032335f3638
38782d302e332d6d 7668207032335f36
38782d302e332d6d 0000002034365f36
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
616c696176616e75 7820343600656c62
782d302e332d6e65 68207032335f3638
782d302e332d6d76 76682032335f3638
38782d302e332d6d 7668207032335f36
ffff800000000000 0000000000001000
namesz: 4
descz: 8
type: 2000003 (XEN_ELFNOTE_DUMPCORE_FORMAT_VERSION)
name: Xen
0000000000000001
Elf64_Shdr:
sh_type: 1 (SHT_PROGBITS)
sh_flags: 0
sh_addr: 0
sh_offset: 768
sh_size: 8d50
sh_link: 0
sh_info: 0
sh_addralign: 8
sh_entsize: 1430
Elf64_Shdr:
sh_name: 23 ".xen_shared_info"
sh_type: 1 (SHT_PROGBITS)
sh_flags: 0
sh_addr: 0
sh_offset: 94b8
sh_size: 1000
sh_link: 0
sh_info: 0
sh_addralign: 8
sh_entsize: 1000
Elf64_Shdr:
sh_name: 34 ".xen_pages"
sh_type: 1 (SHT_PROGBITS)
sh_flags: 0
sh_addr: 0
sh_offset: b000
sh_size: 7f640000
sh_link: 0
sh_info: 0
sh_addralign: 1000
sh_entsize: 1000
Elf64_Shdr:
sh_name: 3f ".xen_p2m"
sh_type: 1 (SHT_PROGBITS)
sh_flags: 0
sh_addr: 0
sh_offset: 7f64b000
sh_size: 7f6400
sh_link: 0
sh_info: 0
sh_addralign: 8
sh_entsize: 10
crash: pv_init_ops exists: ARCH_PVOPS
gdb /boot/vmlinux-2.6.32.21-1
GNU gdb (GDB) 7.0
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu"...
GETBUF(248 -> 0)
GETBUF(1500 -> 1)
FREEBUF(1)
FREEBUF(0)
<readmem: ffffffff81614800, KVADDR, "kernel_config_data", 32768, (ROE), 2fed090>
addr: ffffffff81614800 paddr: 1614800 cnt: 2048
GETBUF(248 -> 0)
FREEBUF(0)
MEMBER_OFFSET(vcpu_guest_context, ctrlreg): 4984
ctrlreg[0]: 80050033
ctrlreg[1]: d5742000
ctrlreg[2]: 0
ctrlreg[3]: d5743000
ctrlreg[4]: 2660
ctrlreg[5]: 0
ctrlreg[6]: 0
ctrlreg[7]: 0
crash: cannot find mfn 874307 (0xd5743) in page index
crash: cannot read/find cr3 page