On 2018/07/11 21:35, Jeremie Courreges-Anglas wrote:
>
> >Synopsis: lock order reversal when starting net/knot
> >Category: kernel
> >Environment:
> System : OpenBSD 6.3
> Details : OpenBSD 6.3-current (GENERIC.MP) #125: Wed Jul 11
> 10:18:39 MDT 2018
>
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine : amd64
> >Description:
> When I run knot (an authoritative name server daemon that uses
> LMDB) the following entries appear in dmesg:
>
> lock order reversal:
> 1st 0xffffff01ff732468 vmmaplk (&map->lock) @ /usr/src/sys/uvm/uvm_map.c:4433
> 2nd 0xffffff01fe312098 inode (&ip->i_lock) @
> /usr/src/sys/ufs/ufs/ufs_vnops.c:1544
> lock order "&ip->i_lock"(rrwlock) -> "&map->lock"(rwlock) first seen at:
> #0 witness_checkorder+0x4c0
> #1 _rw_enter+0x68
> #2 vm_map_lock_ln+0xbc
> #3 uvm_map+0x1a1
> #4 km_alloc+0x16a
> #5 pool_multi_alloc_ni+0xbb
> #6 pool_p_alloc+0x56
> #7 pool_do_get+0xe4
> #8 pool_get+0xaf
> #9 ufsdirhash_build+0x31e
> #10 ufs_lookup+0x19d
> #11 VOP_LOOKUP+0x4f
> #12 vfs_lookup+0x27e
> #13 namei+0x226
> #14 start_init+0xb2
> lock order "&map->lock"(rwlock) -> "&ip->i_lock"(rrwlock) first seen at:
> #0 witness_checkorder+0x4c0
> #1 _rw_enter+0x68
> #2 _rrw_enter+0x3e
> #3 VOP_LOCK+0x3d
> #4 vn_lock+0x34
> #5 uvn_io+0x1b8
> #6 uvm_pager_put+0x109
> #7 uvn_flush+0x424
> #8 uvm_map_clean+0x3e7
> #9 syscall+0x32a
> #10 Xsyscall+0xef
>
> fwiw this looks very similar to the lock order traces seen by Vijay
> Sankar when testing an update to samba-4.8.3 (ports/net/samba):
I see similar at system boot (and have done since at least mid June as it was
included in a list mail I sent then). Haven't stepped through daemon startups
to figure out which one it is on my side yet (would need to do it soon after
startup otherwise witness gets tired and goes home: "witness_lock_list_get:
witness exhausted".
Different trace though:
starting package daemons: redis messagebus avahi_daemon php70_fpm nginx
rrdcached mysqld ido2db(failed) icinga nsca_ng bacula_fd slo
wcgi memcached rspamd tracd clamd_bglock order reversal:
1st 0xffffff039b2dca00 vmmaplk (&map->lock) @
/src/cvs-openbsd/sys/uvm/uvm_map.c:4433
2nd 0xffffff0392bbdc48 inode (&ip->i_lock) @
/src/cvs-openbsd/sys/ufs/ufs/ufs_vnops.c:1544
lock order "&ip->i_lock"(rrwlock) -> "&map->lock"(rwlock) first seen at:
#0 witness_checkorder+0x4c0
#1 _rw_enter_read+0x49
#2 uvmfault_lookup+0x8d
#3 uvm_fault+0x72
#4 pageflttrap+0x14c
#5 kerntrap+0x8f
#6 alltraps_kern+0x7b
#7 copyout+0x53
#8 ffs_read+0x1f0
#9 VOP_READ+0x49
#10 vn_read+0xca
#11 dofilereadv+0x21c
#12 sys_read+0x82
#13 syscall+0x32a
#14 Xsyscall_untramp+0xe4
lock order "&map->lock"(rwlock) -> "&ip->i_lock"(rrwlock) first seen at:
#0 witness_checkorder+0x4c0
#1 _rw_enter+0x68
#2 _rrw_enter+0x3e
#3 VOP_LOCK+0x3d
#4 vn_lock+0x34
#5 uvn_io+0x1b8
#6 uvm_pager_put+0x109
#7 uvn_flush+0x424
#8 uvm_map_clean+0x3e7
#9 syscall+0x32a
#10 Xsyscall_untramp+0xe4
freeradius cupsd rsyncd smbd nmbd lldpd postfix dovecot unifi icinga2 solr
postgresql supervisord.
.
> https://marc.info/?l=openbsd-ports&m=153118057112027&w=2
>
> >How-To-Repeat:
> Start knot (at boot time or from a shell)
> >Fix:
> Unknown
>
>
> dmesg:
> OpenBSD 6.3-current (GENERIC.MP) #125: Wed Jul 11 10:18:39 MDT 2018
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 8573018112 (8175MB)
> avail mem = 8234561536 (7853MB)
> pmap_enter_special: special diffing mapping at ffffffff819ff000
> enter_shared_special_pages: entered kutext.page va 0xffffffff819ff000 pa
> 0x1c3c000
> pmap_enter_special: special diffing mapping at ffffffff81a00000
> enter_shared_special_pages: entered kutext.page va 0xffffffff81a00000 pa
> 0x1c3d000
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xf6890 (11 entries)
> bios0: vendor SeaBIOS version "1.10.2-1" date 04/01/2014
> bios0: QEMU Standard PC (i440FX + PIIX, 1996)
> acpi0 at bios0: rev 0
> acpi0: sleep states S3 S4 S5
> acpi0: tables DSDT FACP APIC
> acpi0: wakeup devices
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> pmap_enter_special: special diffing mapping at ffffffff81cb1000
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel Core Processor (Broadwell), 3408.45 MHz
> cpu0:
> FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,OSXSAVE,AVX,HV,NXE,RDTSCP,LONG,LAHF,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,XSAVEOPT,MELTDOWN
> cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB
> 64b/line 16-way L2 cache
> cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
> cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
> cpu0: apic clock running at 999MHz
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel Core Processor (Broadwell), 3408.03 MHz
> cpu1:
> FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,OSXSAVE,AVX,HV,NXE,RDTSCP,LONG,LAHF,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,XSAVEOPT,MELTDOWN
> cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB
> 64b/line 16-way L2 cache
> cpu1: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
> cpu1: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
> cpu1: smt 0, core 0, package 1
> ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpicpu0 at acpi0: C1(@1 halt!)
> acpicpu1 at acpi0: C1(@1 halt!)
> "ACPI0006" at acpi0 not configured
> acpicmos0 at acpi0
> "PNP0A06" at acpi0 not configured
> "PNP0A06" at acpi0 not configured
> "PNP0A06" at acpi0 not configured
> "QEMU0002" at acpi0 not configured
> pvbus0 at mainbus0: KVM
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
> pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
> pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0
> wired to compatibility, channel 1 wired to compatibility
> atapiscsi0 at pciide0 channel 0 drive 0
> scsibus1 at atapiscsi0: 2 targets
> cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.1.> ATAPI 5/cdrom
> removable
> cd0(pciide0:0:0): using PIO mode 4, DMA mode 2
> pciide0: channel 1 disabled (no drives)
> piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 0 int 9
> iic0 at piixpm0
> virtio0 at pci0 dev 2 function 0 "Qumranet Virtio Network" rev 0x00
> vio0 at virtio0: address 52:54:00:12:01:90
> virtio0: msix shared
> virtio1 at pci0 dev 4 function 0 "Qumranet Virtio Storage" rev 0x00
> vioblk0 at virtio1
> scsibus2 at vioblk0: 2 targets
> sd0 at scsibus2 targ 0 lun 0: <VirtIO, Block Device, > SCSI3 0/direct fixed
> sd0: 256000MB, 512 bytes/sector, 524288000 sectors
> virtio1: msix shared
> virtio2 at pci0 dev 5 function 0 "Qumranet Virtio Memory" rev 0x00
> viomb0 at virtio2
> virtio2: apic 0 int 10
> virtio3 at pci0 dev 6 function 0 "Qumranet Virtio RNG" rev 0x00
> viornd0 at virtio3
> virtio3: apic 0 int 10
> isa0 at pcib0
> isadma0 at isa0
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> com0: console
> pckbc0 at isa0 port 0x60/5 irq 1 irq 12
> pckbd0 at pckbc0 (kbd slot)
> wskbd0 at pckbd0 mux 1
> pms0 at pckbc0 (aux slot)
> wsmouse0 at pms0 mux 0
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> vscsi0 at root
> scsibus3 at vscsi0: 256 targets
> softraid0 at root
> scsibus4 at softraid0: 256 targets
> root on sd0a (871b81ad3a5d5c9e.a) swap on sd0b dump on sd0b
> fd0 at fdc0 drive 1: density unknown
>
> usbdevs:
> usbdevs: no USB controllers found
>
> pcidump:
> Domain /dev/pci0:
> 0:0:0: Intel 82441FX
> 0x0000: Vendor ID: 8086 Product ID: 1237
> 0x0004: Command: 0103 Status: 0000
> 0x0008: Class: 06 Subclass: 00 Interface: 00 Revision: 02
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR empty (00000000)
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
> 0x0000: 12378086 00000103 06000002 00000000
> 0x0010: 00000000 00000000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 11001af4
> 0x0030: 00000000 00000000 00000000 00000000
> 0x0040: 00000000 00000000 00000000 00000000
> 0x0050: 00000000 ff000000 11111000 31111111
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00020000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:1:0: Intel 82371SB ISA
> 0x0000: Vendor ID: 8086 Product ID: 7000
> 0x0004: Command: 0103 Status: 0200
> 0x0008: Class: 06 Subclass: 01 Interface: 00 Revision: 00
> 0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR empty (00000000)
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
> 0x0000: 70008086 02000103 06010000 00800000
> 0x0010: 00000000 00000000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 11001af4
> 0x0030: 00000000 00000000 00000000 00000000
> 0x0040: 00000000 00000000 00000000 0003004d
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 0b0b0a0a 00000000 00000200 00000000
> 0x0070: 00000080 0c0c0000 00000002 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000008 00000000 0000000f 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:1:1: Intel 82371SB IDE
> 0x0000: Vendor ID: 8086 Product ID: 7010
> 0x0004: Command: 0107 Status: 0280
> 0x0008: Class: 01 Subclass: 01 Interface: 80 Revision: 00
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR empty (00000000)
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR io addr: 0x0000c0a0/0x0010
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
> 0x0000: 70108086 02800107 01018000 00000000
> 0x0010: 00000000 00000000 00000000 00000000
> 0x0020: 0000c0a1 00000000 00000000 11001af4
> 0x0030: 00000000 00000000 00000000 00000000
> 0x0040: 0000a307 00000000 00000000 00000000
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:1:3: Intel 82371AB Power
> 0x0000: Vendor ID: 8086 Product ID: 7113
> 0x0004: Command: 0103 Status: 0280
> 0x0008: Class: 06 Subclass: 80 Interface: 00 Revision: 03
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR empty (00000000)
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 01 Line: 09 Min Gnt: 00 Max Lat: 00
> 0x0000: 71138086 02800103 06800003 00000000
> 0x0010: 00000000 00000000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 11001af4
> 0x0030: 00000000 00000000 00000000 00000109
> 0x0040: 00000601 00000000 00000000 00000000
> 0x0050: 00000000 00000000 02000000 10000000
> 0x0060: 60000000 08000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000001 00000000 00000000 00000000
> 0x0090: 00000701 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00090000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:2:0: Qumranet Virtio Network
> 0x0000: Vendor ID: 1af4 Product ID: 1000
> 0x0004: Command: 0107 Status: 0010
> 0x0008: Class: 02 Subclass: 00 Interface: 00 Revision: 00
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR io addr: 0x0000c040/0x0020
> 0x0014: BAR mem 32bit addr: 0xfebc0000/0x00001000
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 0001
> 0x0030: Expansion ROM Base Address: feb80000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 01 Line: 0a Min Gnt: 00 Max Lat: 00
> 0x0040: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
> 0x0000: 10001af4 00100107 02000000 00000000
> 0x0010: 0000c041 febc0000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 00011af4
> 0x0030: feb80000 00000040 00000000 0000010a
> 0x0040: 80020011 00000001 00000801 00000000
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:4:0: Qumranet Virtio Storage
> 0x0000: Vendor ID: 1af4 Product ID: 1001
> 0x0004: Command: 0107 Status: 0010
> 0x0008: Class: 01 Subclass: 00 Interface: 00 Revision: 00
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR io addr: 0x0000c000/0x0040
> 0x0014: BAR mem 32bit addr: 0xfebc1000/0x00001000
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 0002
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 01 Line: 0b Min Gnt: 00 Max Lat: 00
> 0x0040: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
> 0x0000: 10011af4 00100107 01000000 00000000
> 0x0010: 0000c001 febc1000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 00021af4
> 0x0030: 00000000 00000040 00000000 0000010b
> 0x0040: 80010011 00000001 00000801 00000000
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:5:0: Qumranet Virtio Memory
> 0x0000: Vendor ID: 1af4 Product ID: 1002
> 0x0004: Command: 0107 Status: 0000
> 0x0008: Class: 00 Subclass: ff Interface: 00 Revision: 00
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR io addr: 0x0000c060/0x0020
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 0005
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 01 Line: 0a Min Gnt: 00 Max Lat: 00
> 0x0000: 10021af4 00000107 00ff0000 00000000
> 0x0010: 0000c061 00000000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 00051af4
> 0x0030: 00000000 00000000 00000000 0000010a
> 0x0040: 00000000 00000000 00000000 00000000
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
> 0:6:0: Qumranet Virtio RNG
> 0x0000: Vendor ID: 1af4 Product ID: 1005
> 0x0004: Command: 0107 Status: 0000
> 0x0008: Class: 00 Subclass: ff Interface: 00 Revision: 00
> 0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
> 0x0010: BAR io addr: 0x0000c080/0x0020
> 0x0014: BAR empty (00000000)
> 0x0018: BAR empty (00000000)
> 0x001c: BAR empty (00000000)
> 0x0020: BAR empty (00000000)
> 0x0024: BAR empty (00000000)
> 0x0028: Cardbus CIS: 00000000
> 0x002c: Subsystem Vendor ID: 1af4 Product ID: 0004
> 0x0030: Expansion ROM Base Address: 00000000
> 0x0038: 00000000
> 0x003c: Interrupt Pin: 01 Line: 0a Min Gnt: 00 Max Lat: 00
> 0x0000: 10051af4 00000107 00ff0000 00000000
> 0x0010: 0000c081 00000000 00000000 00000000
> 0x0020: 00000000 00000000 00000000 00041af4
> 0x0030: 00000000 00000000 00000000 0000010a
> 0x0040: 00000000 00000000 00000000 00000000
> 0x0050: 00000000 00000000 00000000 00000000
> 0x0060: 00000000 00000000 00000000 00000000
> 0x0070: 00000000 00000000 00000000 00000000
> 0x0080: 00000000 00000000 00000000 00000000
> 0x0090: 00000000 00000000 00000000 00000000
> 0x00a0: 00000000 00000000 00000000 00000000
> 0x00b0: 00000000 00000000 00000000 00000000
> 0x00c0: 00000000 00000000 00000000 00000000
> 0x00d0: 00000000 00000000 00000000 00000000
> 0x00e0: 00000000 00000000 00000000 00000000
> 0x00f0: 00000000 00000000 00000000 00000000
>
> acpidump:
> begin-base64 644 APIC.3
> QVBJQ4AAAAAB2kJPQ0hTIEJYUENBUElDAQAAAEJYUEMBAAAAAADg/gEAAAAACAAAAQAAAAAIAQEB
> AAAAAQwAAAAAwP4AAAAAAgoAAAIAAAAAAAIKAAUFAAAADQACCgAJCQAAAA0AAgoACgoAAAANAAIK
> AAsLAAAADQAEBv8AAAE=
> ====
> begin-base64 644 DSDT.2
> RFNEVJoVAAAB9kJPQ0hTIEJYUENEU0RUAQAAAEJYUEMBAAAAEEkEXABbgERCR18BCwIEAVuBC0RC
> R18BREJHQggULERCVUcBmGhglmBgdIdgAWFwAGKiEJViYXCDiGBiAERCR0J1YnAKCkRCR0IQIl9T
> Ql9bghtQQ0kwCF9ISUQMQdAKAwhfQURSAAhfVUlEARBNCF9TQl9bgkUISFBFVAhfSElEDEHQAQMI
> X1VJRABbgEhQVE0ADAAA0P4LAARbgRBIUFRNE1ZFTkQgUFJEXyAUNl9TVEEAcFZFTkRgcFBSRF9h
> emAKEGCgDJGTYACTYAv//6QAoA6Rk2EAlGEMAOH1BaQApAoPCF9DUlMREQoOhgkAAAAA0P4ABAAA
> eQAQJS5fU0JfUENJMFuCGVBYMTMIX0FEUgwDAAEAW4BQMTNDAgAK/xBABS5fU0JfUENJMFuCQwRJ
> U0FfCF9BRFIMAAABAFuAUDQwQwIKYAoEW4EmXi5QWDEzUDEzQwAASC8AB0xQRU4BADgAA0NBRU4B
> AANDQkVOARBAHC8DX1NCX1BDSTBJU0FfW4ItUlRDXwhfSElEDEHQCwAIX0NSUxEYChVHAXAAcAAQ
> AiIAAUcBcgByAAIGeQBbgjdLQkRfCF9ISUQMQdADAxQJX1NUQQCkCg8IX0NSUxEYChVHAWAAYAAB
> AUcBZABkAAEBIgIAeQBbgidNT1VfCF9ISUQMQdAPExQJX1NUQQCkCg8IX0NSUxEICgUiABB5AFuC
> TgRGREMwCF9ISUQMQdAHAAhfQ1JTERsKGEcB8gPyAwAERwH3A/cDAAEiQAAqBAB5AAhfRkRFERcK
> FAAAAAAAAAAAAAAAAAAAAAACAAAAW4I+TFBUXwhfSElEDEHQBAAUGF9TVEEAcExQRU5goAaTYACk
> AKEEpAoPCF9DUlMREAoNRwF4A3gDCAgigAB5AFuCRQRDT00xCF9ISUQMQdAFAQhfVUlEARQYX1NU
> QQBwQ0FFTmCgBpNgAKQAoQSkCg8IX0NSUxEQCg1HAfgD+AMACCIQAHkAW4JGBENPTTIIX0hJRAxB
> 0AUBCF9VSUQKAhQYX1NUQQBwQ0JFTmCgBpNgAKQAoQSkCg8IX0NSUxEQCg1HAfgC+AIACCIIAHkA
> EEgILl9TQl9QQ0kwW4BQQ1NUAQsArgoIW4EQUENTVENQQ0lVIFBDSUQgW4BTRUpfAQsIrgoEW4EL
> U0VKX0NCMEVKIFuAQk5NUgELEK4KBFuBC0JOTVJDQk5VTSBbAUJMQ0sAFCVQQ0VKAlsjQkxDS///
> cGhCTlVNcHkBaQBCMEVKWydCTENLpAAQTjZfU0JfEEsKUENJMBRECl9QUlQAcBICgGBwAGGiQgmV
> YQqAcHphCgIAYnB7cmFiAAoDAGOgEJNjAHASCQQAAExOS0QAZKAkk2MBoBGTYQoEcBIJBAAATE5L
> UwBkoQ1wEgkEAABMTktBAGSgEZNjCgJwEgkEAABMTktCAGSgEZNjCgNwEgkEAABMTktDAGRwfXli
> ChAAC///AIhkAABwe2EKAwCIZAEAcGSIYGEAdWGkYFuBJC8DUENJMElTQV9QNDBDAVBSUTAIUFJR
> MQhQUlEyCFBSUTMIFBNJUVNUAaAJewqAaACkCgmkCgsUNklRQ1IJCFBSUjARDgoLiQYACQEAAAAA
> eQCKUFJSMAoFUFJSSaALlWgKgHBoUFJSSaRQUlIwW4JMB0xOS0EIX0hJRAxB0AwPCF9VSUQACF9Q
> UlMRFgoTiQ4ACQMFAAAACgAAAAsAAAB5ABQPX1NUQQCkSVFTVFBSUTAUEV9ESVMAfVBSUTAKgFBS
> UTAUD19DUlMApElRQ1JQUlEwFBdfU1JTAYpoCgVQUlJJcFBSUklQUlEwW4JMB0xOS0IIX0hJRAxB
> 0AwPCF9VSUQBCF9QUlMRFgoTiQ4ACQMFAAAACgAAAAsAAAB5ABQPX1NUQQCkSVFTVFBSUTEUEV9E
> SVMAfVBSUTEKgFBSUTEUD19DUlMApElRQ1JQUlExFBdfU1JTAYpoCgVQUlJJcFBSUklQUlExW4JN
> B0xOS0MIX0hJRAxB0AwPCF9VSUQKAghfUFJTERYKE4kOAAkDBQAAAAoAAAALAAAAeQAUD19TVEEA
> pElRU1RQUlEyFBFfRElTAH1QUlEyCoBQUlEyFA9fQ1JTAKRJUUNSUFJRMhQXX1NSUwGKaAoFUFJS
> SXBQUlJJUFJRMluCTQdMTktECF9ISUQMQdAMDwhfVUlECgMIX1BSUxEWChOJDgAJAwUAAAAKAAAA
> CwAAAHkAFA9fU1RBAKRJUVNUUFJRMxQRX0RJUwB9UFJRMwqAUFJRMxQPX0NSUwCkSVFDUlBSUTMU
> F19TUlMBimgKBVBSUklwUFJSSVBSUTNbgk8ETE5LUwhfSElEDEHQDA8IX1VJRAoECF9QUlMRDgoL
> iQYACQEJAAAAeQAUCV9TVEEApAoLFAZfRElTABQLX0NSUwCkX1BSUxQGX1NSUwEQRxxfU0JfFDVD
> UE1BAnCDiENQT05oAGBwEQsKCAAIAAAAAAAAYXBpiGEKAgBwaIhhCgMAcGCIYQoEAKRhFBpDUFNU
> AXCDiENQT05oAGCgBWCkCg+hA6QAFApDUEVKAlsiCsgUSgZQUlNDAHBQUlNfZXAAYnAAYKJGBZVg
> h0NQT05wg4hDUE9OYABhoAp7YAoHAHpiAWKhDHCDiGV6YAoDAABicHtiAQBjoCKSk2FjcGOIQ1BP
> TmAAoAqTYwFOVEZZYAGhCE5URllgCgN1YFuCSwQuUENJMFBSRVMIX0hJRAxB0AoGCF9VSUQNQ1BV
> IEhvdHBsdWcgcmVzb3VyY2VzAAhfU1RBCgsIX0NSUxENCgpHAQCvAK8BIHkAW4BQUlNUAQsArwog
> W4EMUFJTVAFQUlNfQBBbgzRDUDAwAAAAAAAAFA1fTUFUAKRDUE1BAAAUDF9TVEEApENQU1QAFA1f
> RUowAaRDUEVKAGhbgzRDUDAxAQAAAAAAFA1fTUFUAKRDUE1BAQEUDF9TVEEApENQU1QBFA1fRUow
> AaRDUEVKAWgUHE5URlkCoAqTaACGQ1AwMGmgCpNoAYZDUDAxaQhDUE9OEgQCAQEUFlwuX0dQRV9F
> MDIAXC5fU0JfUFJTQxBOLS5fU0JfUENJMFuCQS1NSFBECF9ISUQNUE5QMEEwNgAIX1VJRA1NZW1v
> cnkgaG90cGx1ZyByZXNvdXJjZXMAFBNfU1RBAKAJk01ETlIApACkCgtbAU1MQ0sAFEEGTVNDTgCg
> CZNNRE5SAKQAcABgWyNNTENL//+iPJVgTUROUnBgTVNFTKATk01JTlMBTVRGWWABcAFNSU5ToRag
> FJNNUk1WAU1URllgCgNwAU1STVZyYAFgWydNTENLpAEULU1SU1QBcABgWyNNTENL//9wmWgATVNF
> TKALk01FU18BcAoPYFsnTUxDS6RgFEEYTUNSUwlbI01MQ0v//3CZaABNU0VMCE1SNjQRMwowiisA
> AAwDAAAAAAAAAAAAAAAAAAAAAP7/////////AAAAAAAAAAD//////////3kAik1SNjQKDk1JTkyK
> TVI2NAoSTUlOSIpNUjY0CiZMRU5Mik1SNjQKKkxFTkiKTVI2NAoWTUFYTIpNUjY0ChpNQVhIcE1S
> QkhNSU5IcE1SQkxNSU5McE1STEhMRU5IcE1STExMRU5Mck1JTkxMRU5MTUFYTHJNSU5ITEVOSE1B
> WEigFJVNQVhMTUlOTHJNQVhIAU1BWEigEZVNQVhMAXRNQVhIAU1BWEh0TUFYTAFNQVhMoEQHk01B
> WEgACE1SMzIRHwochxcAAAwDAAAAAAAAAAD+////AAAAAP////95AIpNUjMyCgpNSU5fik1SMzIK
> Dk1BWF+KTVIzMgoWTEVOX3BNSU5MTUlOX3BNQVhMTUFYX3BMRU5MTEVOX1snTUxDS6RNUjMyWydN
> TENLpE1SNjQUJE1QWE0BWyNNTENL//9wmWgATVNFTHBNUFhfYFsnTUxDS6RgFChNT1NUBFsjTUxD
> S///cJloAE1TRUxwaU1PRVZwak1PU0NbJ01MQ0sUIk1FSjACWyNNTENL//9wmWgATVNFTHABTUVK
> X1snTUxDSxBJBl9HUEUIX0hJRA1BQ1BJMDAwNgAUOV9FMDEAWyNcLwNfU0JfUENJMEJMQ0v//1wv
> A19TQl9QQ0kwUENOVFsnXC8DX1NCX1BDSTBCTENLFBlfRTAzAFwvBF9TQl9QQ0kwTUhQRE1TQ04Q
> RRFcLl9TQl9QQ0kwCF9DUlMRQgcKbogNAAIMAAAAAAD/AAAAAAFHAfgM+AwBCIgNAAEMAwAAAAD3
> DAAA+AyIDQABDAMAAAAN//8AAADzhxcAAAwDAAAAAAAACgD//wsAAAAAAAAAAgCHFwAADAEAAAAA
> AAAAwP//v/4AAAAAAADAPnkAW4JDBEdQRTAIX0hJRA1QTlAwQTA2AAhfVUlEDUdQRTAgcmVzb3Vy
> Y2VzAAhfU1RBCgsIX0NSUxENCgpHAeCv4K8BBHkAW4JKBFBIUFIIX0hJRA1QTlAwQTA2AAhfVUlE
> DVBDSSBIb3RwbHVnIHJlc291cmNlcwAIX1NUQQoLCF9DUlMRDQoKRwEArgCuARR5ABApXAAIX1Mz
> XxIGBAEBAAAIX1M0XxIIBAoCCgIAAAhfUzVfEgYEAAAAABA7XC5fU0JfUENJMFuCLkZXQ0YIX0hJ
> RA1RRU1VMDAwMgAIX1NUQQoLCF9DUlMRDQoKRwEQBRAFAQJ5ABBGelxfU0JfEE0IXC8DX1NCX1BD
> STBNSFBECE1ETlIACF9DUlMRDQoKRwEACgAKABh5AFuASFBNUgELAAoKGFuBH0hQTVIDTVJCTCBN
> UkJIIE1STEwgTVJMSCBNUFhfIFuBHUhQTVJBAEAKTUVTXwFNSU5TAU1STVYBTUVKXwFbgRVIUE1S
> A01TRUwgTU9FViBNT1NDIBQGTVRGWQIQSXBQQ0kwCEJTRUwAW4ILUzAwXwhfQURSAFuCKVMxMF8I
> X0FEUgwAAAIACF9TVU4KAhQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTMThfCF9TVU4KAwhfQURSDAAA
> AwAUEl9FSjABUENFSkJTRUxfU1VOW4IpUzIwXwhfQURSDAAABAAIX1NVTgoEFBJfRUowAVBDRUpC
> U0VMX1NVTluCKVMyOF8IX0FEUgwAAAUACF9TVU4KBRQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTMzBf
> CF9BRFIMAAAGAAhfU1VOCgYUEl9FSjABUENFSkJTRUxfU1VOW4IpUzM4XwhfU1VOCgcIX0FEUgwA
> AAcAFBJfRUowAVBDRUpCU0VMX1NVTluCKVM0MF8IX1NVTgoICF9BRFIMAAAIABQSX0VKMAFQQ0VK
> QlNFTF9TVU5bgilTNDhfCF9TVU4KCQhfQURSDAAACQAUEl9FSjABUENFSkJTRUxfU1VOW4IpUzUw
> XwhfU1VOCgoIX0FEUgwAAAoAFBJfRUowAVBDRUpCU0VMX1NVTluCKVM1OF8IX1NVTgoLCF9BRFIM
> AAALABQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTNjBfCF9TVU4KDAhfQURSDAAADAAUEl9FSjABUENF
> SkJTRUxfU1VOW4IpUzY4XwhfU1VOCg0IX0FEUgwAAA0AFBJfRUowAVBDRUpCU0VMX1NVTluCKVM3
> MF8IX1NVTgoOCF9BRFIMAAAOABQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTNzhfCF9TVU4KDwhfQURS
> DAAADwAUEl9FSjABUENFSkJTRUxfU1VOW4IpUzgwXwhfU1VOChAIX0FEUgwAABAAFBJfRUowAVBD
> RUpCU0VMX1NVTluCKVM4OF8IX1NVTgoRCF9BRFIMAAARABQSX0VKMAFQQ0VKQlNFTF9TVU5bgilT
> OTBfCF9TVU4KEghfQURSDAAAEgAUEl9FSjABUENFSkJTRUxfU1VOW4IpUzk4XwhfU1VOChMIX0FE
> UgwAABMAFBJfRUowAVBDRUpCU0VMX1NVTluCKVNBMF8IX1NVTgoUCF9BRFIMAAAUABQSX0VKMAFQ
> Q0VKQlNFTF9TVU5bgilTQThfCF9TVU4KFQhfQURSDAAAFQAUEl9FSjABUENFSkJTRUxfU1VOW4Ip
> U0IwXwhfU1VOChYIX0FEUgwAABYAFBJfRUowAVBDRUpCU0VMX1NVTluCKVNCOF8IX1NVTgoXCF9B
> RFIMAAAXABQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTQzBfCF9TVU4KGAhfQURSDAAAGAAUEl9FSjAB
> UENFSkJTRUxfU1VOW4IpU0M4XwhfU1VOChkIX0FEUgwAABkAFBJfRUowAVBDRUpCU0VMX1NVTluC
> KVNEMF8IX1NVTgoaCF9BRFIMAAAaABQSX0VKMAFQQ0VKQlNFTF9TVU5bgilTRDhfCF9TVU4KGwhf
> QURSDAAAGwAUEl9FSjABUENFSkJTRUxfU1VOW4IpU0UwXwhfU1VOChwIX0FEUgwAABwAFBJfRUow
> AVBDRUpCU0VMX1NVTluCKVNFOF8IX1NVTgodCF9BRFIMAAAdABQSX0VKMAFQQ0VKQlNFTF9TVU5b
> gilTRjBfCF9TVU4KHghfQURSDAAAHgAUEl9FSjABUENFSkJTRUxfU1VOW4IpU0Y4XwhfU1VOCh8I
> X0FEUgwAAB8AFBJfRUowAVBDRUpCU0VMX1NVThRFHERWTlQCoAx7aAoEAIZTMTBfaaAMe2gKCACG
> UzE4X2mgDHtoChAAhlMyMF9poAx7aAogAIZTMjhfaaAMe2gKQACGUzMwX2mgDHtoCoAAhlMzOF9p
> oA17aAsAAQCGUzQwX2mgDXtoCwACAIZTNDhfaaANe2gLAAQAhlM1MF9poA17aAsACACGUzU4X2mg
> DXtoCwAQAIZTNjBfaaANe2gLACAAhlM2OF9poA17aAsAQACGUzcwX2mgDXtoCwCAAIZTNzhfaaAP
> e2gMAAABAACGUzgwX2mgD3toDAAAAgAAhlM4OF9poA97aAwAAAQAAIZTOTBfaaAPe2gMAAAIAACG
> Uzk4X2mgD3toDAAAEAAAhlNBMF9poA97aAwAACAAAIZTQThfaaAPe2gMAABAAACGU0IwX2mgD3to
> DAAAgAAAhlNCOF9poA97aAwAAAABAIZTQzBfaaAPe2gMAAAAAgCGU0M4X2mgD3toDAAAAAQAhlNE
> MF9poA97aAwAAAAIAIZTRDhfaaAPe2gMAAAAEACGU0UwX2mgD3toDAAAACAAhlNFOF9poA97aAwA
> AABAAIZTRjBfaaAPe2gMAAAAgACGU0Y4X2kUH1BDTlQAcABCTlVNRFZOVFBDSVUBRFZOVFBDSUQK
> Aw==
> ====
> begin-base64 644 FACP.1
> RkFDUHQAAAAB50JPQ0hTIEJYUENGQUNQAQAAAEJYUEMBAAAAAAD+v0AA/r8BAAkAsgAAAPHwAAAA
> BgAAAAAAAAQGAAAAAAAAAAAAAAgGAADgrwAAAAAAAAQCAAQEAAAA/w//DwAAAAAAAAAAMgAAAKWA
> AAA=
> ====
> begin-base64 644 RSDT.0
> UlNEVCwAAAABoUJPQ0hTIEJYUENSU0RUAQAAAEJYUEMBAAAA2hX+v04W/r8=
> ====
> begin-base64 644 headers
> ClJTRCBQVFI6IENoZWNrc3VtPTE3NywgT0VNSUQ9Qk9DSFMsIFJldmlzaW9uPTAsIFJzZHRBZGRy
> ZXNzPTB4YmZmZTE2Y2UKCgpSU0RUOiBMZW5ndGg9NDQsIFJldmlzaW9uPTEsIENoZWNrc3VtPTE2
> MSwKCU9FTUlEPUJPQ0hTLCBPRU0gVGFibGUgSUQ9QlhQQ1JTRFQsIE9FTSBSZXZpc2lvbj0weDEs
> CglDcmVhdG9yIElEPUJYUEMsIENyZWF0b3IgUmV2aXNpb249MHgxCgoKCUVudHJpZXM9eyAweGJm
> ZmUxNWRhLCAweGJmZmUxNjRlIH0KCgoJRFNEVD0weGJmZmUwMDQwCglJTlRfTU9ERUw9QVBJQwoJ
> U0NJX0lOVD05CglTTUlfQ01EPTB4YjIsIEFDUElfRU5BQkxFPTB4ZjEsIEFDUElfRElTQUJMRT0w
> eGYwLCBTNEJJT1NfUkVRPTB4MAoJUE0xYV9FVlRfQkxLPTB4NjAwLTB4NjAzCglQTTFhX0NOVF9C
> TEs9MHg2MDQtMHg2MDUKCVBNMl9UTVJfQkxLPTB4NjA4LTB4NjBiCglQTTJfR1BFMF9CTEs9MHhh
> ZmUwLTB4YWZlMwoJUF9MVkwyX0xBVD00MDk1bXMsIFBfTFZMM19MQVQ9NDA5NW1zCglGTFVTSF9T
> SVpFPTAsIEZMVVNIX1NUUklERT0wCglEVVRZX09GRlNFVD0wLCBEVVRZX1dJRFRIPTAKCURBWV9B
> TFJNPTAsIE1PTl9BTFJNPTAsIENFTlRVUlk9NTAKCUZsYWdzPXtXQklOVkQsUFJPQ19DMSxTTFBf
> QlVUVE9OLFJUQ19TNH0KCgpEU0RUOiBMZW5ndGg9NTUzMCwgUmV2aXNpb249MSwgQ2hlY2tzdW09
> MjQ2LAoJT0VNSUQ9Qk9DSFMsIE9FTSBUYWJsZSBJRD1CWFBDRFNEVCwgT0VNIFJldmlzaW9uPTB4
> MSwKCUNyZWF0b3IgSUQ9QlhQQywgQ3JlYXRvciBSZXZpc2lvbj0weDEKCgpBUElDOiBMZW5ndGg9
> MTI4LCBSZXZpc2lvbj0xLCBDaGVja3N1bT0yMTgsCglPRU1JRD1CT0NIUywgT0VNIFRhYmxlIElE
> PUJYUENBUElDLCBPRU0gUmV2aXNpb249MHgxLAoJQ3JlYXRvciBJRD1CWFBDLCBDcmVhdG9yIFJl
> dmlzaW9uPTB4MQoK
> ====
>
>
> --
> jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
>
