[Xen-devel] Dom0 linux 4.0 + devel/for-linus-4.1 branch: p2m.c:884:d0v0 gfn_to_mfn failed! gfn=ffffffff001ed type:4

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Hi David,

I seem to have spotted some trouble with a 4.0 dom0 kernel with the 
devel/for-linus-4.1 branch pulled on top.

Does this remind you of any specific commits in the devel/for-linus-4.1 branch 
that could
likely be involved that i could try to revert ?

--
Sander


I now get a very large number of these at guest with passthrough start:
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001ed type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001ee type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001ef type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f0 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f1 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f2 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f3 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f4 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f5 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f6 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f7 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f8 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001f9 type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001fa type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001fb type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001fc type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001fd type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001fe type:4
(XEN) [2015-04-12 14:55:20.226] p2m.c:884:d0v0 gfn_to_mfn failed! 
gfn=ffffffff001ff type:4
(XEN) [2015-04-12 14:55:20.226] memory_map: error -22 removing dom1 access to 
[fe200,fe3ff]


But the guest starts after that .. and the device seems to work fine:
(d1) [2015-04-12 14:55:20.230] pci dev 05:0 INTA->IRQ10
(d1) [2015-04-12 14:55:20.246] No RAM in high memory; setting high_mem resource 
base to 100000000
(d1) [2015-04-12 14:55:20.247] pci dev 03:0 bar 10 size 002000000: 0f0000008
(d1) [2015-04-12 14:55:20.248] pci dev 02:0 bar 14 size 001000000: 0f2000008
(d1) [2015-04-12 14:55:20.250] pci dev 05:0 bar 10 size 000200000: 0f3000004
(XEN) [2015-04-12 14:55:20.250] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(d1) [2015-04-12 14:55:20.255] pci dev 04:0 bar 30 size 000040000: 0f3200000
(d1) [2015-04-12 14:55:20.257] pci dev 04:0 bar 10 size 000020000: 0f3240000
(d1) [2015-04-12 14:55:20.257] pci dev 03:0 bar 30 size 000010000: 0f3260000
(d1) [2015-04-12 14:55:20.259] pci dev 03:0 bar 14 size 000001000: 0f3270000
(d1) [2015-04-12 14:55:20.260] pci dev 02:0 bar 10 size 000000100: 00000c001
(d1) [2015-04-12 14:55:20.262] pci dev 04:0 bar 14 size 000000040: 00000c101
(d1) [2015-04-12 14:55:20.263] pci dev 01:1 bar 20 size 000000010: 00000c141
(d1) [2015-04-12 14:55:20.266] Multiprocessor initialisation:
(d1) [2015-04-12 14:55:20.286]  - CPU0 ... 48-bit phys ... fixed MTRRs ... var 
MTRRs [1/8] ... done.
(d1) [2015-04-12 14:55:20.307]  - CPU1 ... 48-bit phys ... fixed MTRRs ... var 
MTRRs [1/8] ... done.
(d1) [2015-04-12 14:55:20.333]  - CPU2 ... 48-bit phys ... fixed MTRRs ... var 
MTRRs [1/8] ... done.
(d1) [2015-04-12 14:55:20.359]  - CPU3 ... 48-bit phys ... fixed MTRRs ... var 
MTRRs [1/8] ... done.
(d1) [2015-04-12 14:55:20.359] Testing HVM environment:
(d1) [2015-04-12 14:55:20.375]  - REP INSB across page boundaries ... passed
(d1) [2015-04-12 14:55:20.388]  - GS base MSRs and SWAPGS ... passed
(d1) [2015-04-12 14:55:20.388] Passed 2 of 2 tests
(d1) [2015-04-12 14:55:20.388] Writing SMBIOS tables ...
(d1) [2015-04-12 14:55:20.389] Loading SeaBIOS ...
(d1) [2015-04-12 14:55:20.389] Creating MP tables ...
(d1) [2015-04-12 14:55:20.389] Loading ACPI ...
(d1) [2015-04-12 14:55:20.390] vm86 TSS at fc00a200
(d1) [2015-04-12 14:55:20.391] BIOS map:
(d1) [2015-04-12 14:55:20.391]  10000-100d3: Scratch space
(d1) [2015-04-12 14:55:20.391]  c0000-fffff: Main BIOS
(d1) [2015-04-12 14:55:20.391] E820 table:
(d1) [2015-04-12 14:55:20.391]  [00]: 00000000:00000000 - 00000000:000a0000: RAM
(d1) [2015-04-12 14:55:20.391]  HOLE: 00000000:000a0000 - 00000000:000c0000
(d1) [2015-04-12 14:55:20.391]  [01]: 00000000:000c0000 - 00000000:00100000: 
RESERVED
(d1) [2015-04-12 14:55:20.391]  [02]: 00000000:00100000 - 00000000:3f800000: RAM
(d1) [2015-04-12 14:55:20.391]  HOLE: 00000000:3f800000 - 00000000:fc000000
(d1) [2015-04-12 14:55:20.391]  [03]: 00000000:fc000000 - 00000001:00000000: 
RESERVED
(d1) [2015-04-12 14:55:20.391] Invoking SeaBIOS ...
(d1) [2015-04-12 14:55:20.393] SeaBIOS (version 
rel-1.8.0-0-g4c59f5d-20150412_163626-serveerstertje)
(d1) [2015-04-12 14:55:20.393]
(d1) [2015-04-12 14:55:20.393] Found Xen hypervisor signature at 40000000
(d1) [2015-04-12 14:55:20.393] Running on QEMU (i440fx)
(d1) [2015-04-12 14:55:20.393] xen: copy e820...
(d1) [2015-04-12 14:55:20.393] Relocating init from 0x000de3f0 to 0x3f7ae880 
(size 71360)
(d1) [2015-04-12 14:55:20.395] CPU Mhz=3201
(d1) [2015-04-12 14:55:20.398] Found 8 PCI devices (max PCI bus is 00)
(d1) [2015-04-12 14:55:20.398] Allocated Xen hypercall page at 3f7ff000
(d1) [2015-04-12 14:55:20.398] Detected Xen v4.6-unstable
(d1) [2015-04-12 14:55:20.398] xen: copy BIOS tables...
(d1) [2015-04-12 14:55:20.398] Copying SMBIOS entry point from 0x00010010 to 
0x000f6570
(d1) [2015-04-12 14:55:20.398] Copying MPTABLE from 0xfc0011b0/fc0011c0 to 
0x000f6450
(d1) [2015-04-12 14:55:20.398] Copying PIR from 0x00010030 to 0x000f63d0
(d1) [2015-04-12 14:55:20.398] Copying ACPI RSDP from 0x000100b0 to 0x000f63a0
(d1) [2015-04-12 14:55:20.398] Using pmtimer, ioport 0xb008
(d1) [2015-04-12 14:55:20.398] Scan for VGA option rom
(d1) [2015-04-12 14:55:20.410] Running option rom at c000:0003
(XEN) [2015-04-12 14:55:20.416] stdvga.c:147:d1v0 entering stdvga and caching 
modes
(d1) [2015-04-12 14:55:20.440] pmm call arg1=0
(d1) [2015-04-12 14:55:20.441] Turning on vga text mode console
(d1) [2015-04-12 14:55:20.496] SeaBIOS (version 
rel-1.8.0-0-g4c59f5d-20150412_163626-serveerstertje)
(d1) [2015-04-12 14:55:20.505] Machine UUID 424ae320-0b9f-4df6-865f-788f5fd31608
(d1) [2015-04-12 14:55:20.505] All threads complete.
(d1) [2015-04-12 14:55:20.506] Found 0 lpt ports
(d1) [2015-04-12 14:55:20.506] Found 1 serial ports
(d1) [2015-04-12 14:55:20.506] ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9)
(d1) [2015-04-12 14:55:20.507] ATA controller 2 at 170/374/0 (irq 15 dev 9)
(d1) [2015-04-12 14:55:20.510] ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (10240 
MiBytes)
(d1) [2015-04-12 14:55:20.510] Searching bootorder for: 
/pci@i0cf8/*@1,1/drive@0/disk@0
(d1) [2015-04-12 14:55:20.511] ata0-1: QEMU HARDDISK ATA-7 Hard-Disk (300 
GiBytes)
(d1) [2015-04-12 14:55:20.511] Searching bootorder for: 
/pci@i0cf8/*@1,1/drive@0/disk@1
(d1) [2015-04-12 14:55:20.608] PS2 keyboard initialized
(d1) [2015-04-12 14:55:20.608] All threads complete.
(d1) [2015-04-12 14:55:20.608] Scan for option roms
(d1) [2015-04-12 14:55:20.627] Running option rom at c980:0003
(d1) [2015-04-12 14:55:20.631] pmm call arg1=1
(d1) [2015-04-12 14:55:20.631] pmm call arg1=0
(d1) [2015-04-12 14:55:20.632] pmm call arg1=1
(d1) [2015-04-12 14:55:20.633] pmm call arg1=0
(d1) [2015-04-12 14:55:20.644] Searching bootorder for: /pci@i0cf8/*@4
(d1) [2015-04-12 14:55:20.644]
(d1) [2015-04-12 14:55:20.648] Press F12 for boot menu.
(d1) [2015-04-12 14:55:20.648]
(d1) [2015-04-12 14:55:23.195] Searching bootorder for: HALT
(d1) [2015-04-12 14:55:23.195] drive 0x000f6350: PCHS=16383/16/63 
translation=lba LCHS=1024/255/63 s=20971520
(d1) [2015-04-12 14:55:23.200] drive 0x000f6320: PCHS=16383/16/63 
translation=lba LCHS=1024/255/63 s=629145600
(d1) [2015-04-12 14:55:23.200]
(d1) [2015-04-12 14:55:23.200] Space available for UMB: ca800-ef000, f5d90-f6320
(d1) [2015-04-12 14:55:23.200] Returned 258048 bytes of ZoneHigh
(d1) [2015-04-12 14:55:23.201] e820 map has 6 items:
(d1) [2015-04-12 14:55:23.201]   0: 0000000000000000 - 000000000009fc00 = 1 RAM
(d1) [2015-04-12 14:55:23.201]   1: 000000000009fc00 - 00000000000a0000 = 2 
RESERVED
(d1) [2015-04-12 14:55:23.201]   2: 00000000000f0000 - 0000000000100000 = 2 
RESERVED
(d1) [2015-04-12 14:55:23.201]   3: 0000000000100000 - 000000003f7ff000 = 1 RAM
(d1) [2015-04-12 14:55:23.201]   4: 000000003f7ff000 - 000000003f800000 = 2 
RESERVED
(d1) [2015-04-12 14:55:23.201]   5: 00000000fc000000 - 0000000100000000 = 2 
RESERVED
(d1) [2015-04-12 14:55:23.204] enter handle_19:
(d1) [2015-04-12 14:55:23.204]   NULL
(d1) [2015-04-12 14:55:23.216] Booting from Hard Disk...
(d1) [2015-04-12 14:55:23.217] Booting from 0000:7c00
(XEN) [2015-04-12 14:55:25.446] stdvga.c:151:d1v0 leaving stdvga
(XEN) [2015-04-12 14:55:37.363] stdvga.c:147:d1v0 entering stdvga and caching 
modes
(XEN) [2015-04-12 14:55:37.918] irq.c:386: Dom1 callback via changed to Direct 
Vector 0xf3
(XEN) [2015-04-12 14:55:40.484] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.491] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.496] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.502] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.507] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.513] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.518] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.524] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.530] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.536] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.541] memory_map:remove: dom1 gfn=f3000 mfn=fe200 
nr=200
(XEN) [2015-04-12 14:55:40.547] memory_map:add: dom1 gfn=f3000 mfn=fe200 nr=200
(XEN) [2015-04-12 14:55:40.565] irq.c:276: Dom1 PCI link 0 changed 5 -> 0
(XEN) [2015-04-12 14:55:40.574] irq.c:276: Dom1 PCI link 1 changed 10 -> 0
(XEN) [2015-04-12 14:55:40.583] irq.c:276: Dom1 PCI link 2 changed 11 -> 0
(XEN) [2015-04-12 14:55:40.592] irq.c:276: Dom1 PCI link 3 changed 5 -> 0
(XEN) [2015-04-12 14:55:41.346] grant_table.c:1305:d1v1 Expanding dom (1) grant 
table from (4) to (5) frames.
(XEN) [2015-04-12 14:57:24.045] grant_table.c:1305:d1v0 Expanding dom (1) grant 
table from (5) to (6) frames.
(XEN) [2015-04-12 14:57:24.051] grant_table.c:311:d0v0 Increased maptrack size 
to 2 frames
(d2) [2015-04-12 14:58:13.556] mapping kernel into physical memory
(d2) [2015-04-12 14:58:13.556] about to get started...


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