Regression: USB device doesn't get ready to mount

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Flash drive doesn't get ready to mount instantly after it's plugged
into a USB port; only after a few minutes it's possible to mount.

I've checked it out on 3.9.11, 3.10.5, and 3.11-rc4. It works normally
on 3.9.11. dmesg output file for each kernel tested:

 $ cat dmesg-3.9.11
[   74.391651] usb 3-4: new high-speed USB device number 3 using xhci_hcd
[   74.410514] usb 3-4: New USB device found, idVendor=0951, idProduct=1607
[   74.410529] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   74.410532] usb 3-4: Product: DataTraveler 2.0
[   74.410534] usb 3-4: Manufacturer: Kingston
[   74.410536] usb 3-4: SerialNumber: 00137299803FA931262A00CD
[   74.465400] Initializing USB Mass Storage driver...
[   74.465654] scsi7 : usb-storage 3-4:1.0
[   74.465726] usbcore: registered new interface driver usb-storage
[   74.465728] USB Mass Storage support registered.
[   75.465448] scsi 7:0:0:0: Direct-Access     Kingston DataTraveler
2.0 1.00 PQ: 0 ANSI: 2
[   75.465839] sd 7:0:0:0: Attached scsi generic sg4 type 0
[   75.466277] sd 7:0:0:0: [sdd] 3973120 512-byte logical blocks:
(2.03 GB/1.89 GiB)
[   75.466620] sd 7:0:0:0: [sdd] Write Protect is off
[   75.466625] sd 7:0:0:0: [sdd] Mode Sense: 23 00 00 00
[   75.466955] sd 7:0:0:0: [sdd] No Caching mode page present
[   75.466960] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[   75.469081] sd 7:0:0:0: [sdd] No Caching mode page present
[   75.469087] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[   75.681901]  sdd: sdd1 sdd2
[   75.683219] sd 7:0:0:0: [sdd] No Caching mode page present
[   75.683224] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[   75.683227] sd 7:0:0:0: [sdd] Attached SCSI removable disk

 $ cat dmesg-3.10.5
[ 1370.659092] usb 3-4: new high-speed USB device number 8 using xhci_hcd
[ 1370.677899] usb 3-4: New USB device found, idVendor=0951, idProduct=1607
[ 1370.677906] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1370.677910] usb 3-4: Product: DataTraveler 2.0
[ 1370.677913] usb 3-4: Manufacturer: Kingston
[ 1370.677916] usb 3-4: SerialNumber: 00137299803FA931262A00CD
[ 1370.678442] usb-storage 3-4:1.0: USB Mass Storage device detected
[ 1370.678711] scsi12 : usb-storage 3-4:1.0
[ 1371.674797] scsi 12:0:0:0: Direct-Access     Kingston DataTraveler
2.0 1.00 PQ: 0 ANSI: 2
[ 1371.675283] sd 12:0:0:0: Attached scsi generic sg4 type 0
[ 1371.675809] sd 12:0:0:0: [sdd] 3973120 512-byte logical blocks:
(2.03 GB/1.89 GiB)
[ 1371.676184] sd 12:0:0:0: [sdd] Write Protect is off
[ 1371.676192] sd 12:0:0:0: [sdd] Mode Sense: 23 00 00 00
[ 1371.676560] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1371.676567] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1402.372357] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1402.389648] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1402.389655] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1433.410334] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1433.427691] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1433.427698] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1464.352379] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1464.369587] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1464.369592] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1495.294439] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1495.311616] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1495.311623] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1495.314661] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1495.314677] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1526.236340] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1526.253657] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1526.253665] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1557.306368] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1557.323619] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1557.323627] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1588.248358] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1588.265745] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1588.265752] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1619.190405] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1619.207780] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1619.207788] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1619.421206]  sdd: sdd1 sdd2
[ 1619.422735] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1619.422741] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1650.132306] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1650.149607] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1650.149614] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1681.202196] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1681.219363] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1681.219370] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1712.144197] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1712.161474] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1712.161482] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1743.086261] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1743.103565] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ecdc0
[ 1743.103572] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d4ece00
[ 1743.104256] sd 12:0:0:0: [sdd] Attached SCSI removable disk

 $ cat dmesg-3.11.0-rc4
[   52.305894] usb 1-4: new high-speed USB device number 3 using xhci_hcd
[   52.324342] usb 1-4: New USB device found, idVendor=0951, idProduct=1607
[   52.324346] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   52.324348] usb 1-4: Product: DataTraveler 2.0
[   52.324350] usb 1-4: Manufacturer: Kingston
[   52.324352] usb 1-4: SerialNumber: 00137299803FA931262A00CD
[   52.367067] usb-storage 1-4:1.0: USB Mass Storage device detected
[   52.367118] scsi7 : usb-storage 1-4:1.0
[   52.367185] usbcore: registered new interface driver usb-storage
[   53.367505] scsi 7:0:0:0: Direct-Access     Kingston DataTraveler
2.0 1.00 PQ: 0 ANSI: 2
[   53.367750] sd 7:0:0:0: Attached scsi generic sg4 type 0
[   53.368168] sd 7:0:0:0: [sdd] 3973120 512-byte logical blocks:
(2.03 GB/1.89 GiB)
[   53.368468] sd 7:0:0:0: [sdd] Write Protect is off
[   53.368473] sd 7:0:0:0: [sdd] Mode Sense: 23 00 00 00
[   53.368767] sd 7:0:0:0: [sdd] No Caching mode page present
[   53.368770] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[   84.003145] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[   84.020299] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[   84.020303] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  115.043578] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  115.060734] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  115.060737] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  146.180122] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  146.197303] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  146.197307] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  177.188520] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  177.205693] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  177.205696] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  177.207730] sd 7:0:0:0: [sdd] No Caching mode page present
[  177.207732] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[  208.196919] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  208.214074] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  208.214077] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  239.269383] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  239.286543] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  239.286546] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  270.341854] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  270.359029] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  270.359032] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  301.350255] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  301.367431] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  301.367434] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  301.582807]  sdd: sdd1 sdd2
[  301.583905] sd 7:0:0:0: [sdd] No Caching mode page present
[  301.583909] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[  332.358655] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  332.375776] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  332.375780] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  363.367058] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  363.384217] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  363.384221] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  394.375462] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  394.392617] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  394.392620] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  425.511993] usb 1-4: reset high-speed USB device number 3 using xhci_hcd
[  425.529152] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da8c0
[  425.529155] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called
with disabled ep ffff88024d3da900
[  425.529519] sd 7:0:0:0: [sdd] Attached SCSI removable disk

 $ ./scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux lambda 3.11.0-rc4 #1 SMP PREEMPT Mon Aug 5 21:40:31 BRT 2013
x86_64 GNU/Linux

Gnu C                  4.7
Gnu make               3.81
binutils               2.22
util-linux             2.20.1
mount                  support
module-init-tools      9
e2fsprogs              1.42.8
Linux C Library        2.17
Dynamic linker (ldd)   2.17
Procps                 3.3.4
Net-tools              1.60
Kbd                    1.15.5
Sh-utils               8.13
Modules Loaded         isofs usb_storage bnep rfcomm pci_stub vboxpci
vboxnetadp vboxnetflt vboxdrv i8k nfsd auth_rpcgss oid_registry
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat coretemp
btusb bluetooth rts5139 hid_generic usbhid hid iwldvm radeon ehci_pci
ehci_hcd xhci_hcd usbcore mei_me iwlwifi ttm r8169 mei psmouse sg
usb_common battery ac sr_mod i2c_i801 lpc_ich cdrom mii hwmon mfd_core
evdev ext4 crc16 mbcache jbd2 sd_mod crc_t10dif ahci libahci libata
scsi_mod

 $ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM
Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210
Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset
Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC
Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA
Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family
SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Chelsea LP [Radeon HD 7730M]
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
08:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)

 $ lsusb
Bus 004 Device 003: ID 8087:07da Intel Corp.
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 004: ID 0c45:644a Microdia
Bus 003 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129
Card Reader Controller
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0951:1607 Kingston Technology DataTraveler 100
Bus 001 Device 002: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0
for Bluetooth
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

 $ cat /proc/modules
isofs 35129 1 - Live 0xffffffffa04d0000
usb_storage 48020 1 - Live 0xffffffffa04b9000
bnep 17535 2 - Live 0xffffffffa04af000
rfcomm 33352 10 - Live 0xffffffffa049f000
pci_stub 12429 1 - Live 0xffffffffa049a000
vboxpci 19094 0 - Live 0xffffffffa0490000 (O)
vboxnetadp 25443 0 - Live 0xffffffffa0450000 (O)
vboxnetflt 23697 0 - Live 0xffffffffa0445000 (O)
vboxdrv 217331 3 vboxpci,vboxnetadp,vboxnetflt, Live 0xffffffffa0459000 (O)
i8k 13058 0 - Live 0xffffffffa037b000
nfsd 191995 2 - Live 0xffffffffa0415000
auth_rpcgss 39122 1 nfsd, Live 0xffffffffa023b000
oid_registry 12419 1 auth_rpcgss, Live 0xffffffffa01ff000
nfs_acl 12511 1 nfsd, Live 0xffffffffa01fa000
nfs 105669 0 - Live 0xffffffffa03fa000
lockd 55539 2 nfsd,nfs, Live 0xffffffffa03eb000
fscache 38278 1 nfs, Live 0xffffffffa01ef000
sunrpc 160288 6 nfsd,auth_rpcgss,nfs_acl,nfs,lockd, Live 0xffffffffa0352000
nls_utf8 12456 2 - Live 0xffffffffa0190000
nls_cp437 16553 1 - Live 0xffffffffa01e3000
vfat 17365 1 - Live 0xffffffffa01e9000
fat 50602 1 vfat, Live 0xffffffffa01d5000
coretemp 12898 0 - Live 0xffffffffa018b000
btusb 17638 0 - Live 0xffffffffa0168000
bluetooth 169564 24 bnep,rfcomm,btusb, Live 0xffffffffa03c0000
rts5139 199114 0 - Live 0xffffffffa038e000 (C)
hid_generic 12393 0 - Live 0xffffffffa0236000
usbhid 40928 0 - Live 0xffffffffa0383000
hid 81858 2 hid_generic,usbhid, Live 0xffffffffa0221000
iwldvm 111931 0 - Live 0xffffffffa0204000
radeon 1000314 0 - Live 0xffffffffa025c000
ehci_pci 12472 0 - Live 0xffffffffa0139000
ehci_hcd 40640 1 ehci_pci, Live 0xffffffffa01ca000
xhci_hcd 78348 0 - Live 0xffffffffa0247000
usbcore 134869 7
usb_storage,btusb,rts5139,usbhid,ehci_pci,ehci_hcd,xhci_hcd, Live
0xffffffffa01a8000
mei_me 13568 0 - Live 0xffffffffa0134000
iwlwifi 73316 1 iwldvm, Live 0xffffffffa0195000
ttm 54170 1 radeon, Live 0xffffffffa017c000
r8169 52951 0 - Live 0xffffffffa016e000
mei 46029 1 mei_me, Live 0xffffffffa015b000
psmouse 65413 0 - Live 0xffffffffa014a000
sg 26048 0 - Live 0xffffffffa013e000
usb_common 12440 1 usbcore, Live 0xffffffffa012f000
battery 13101 0 - Live 0xffffffffa0117000
ac 12668 0 - Live 0xffffffffa010c000
sr_mod 21988 0 - Live 0xffffffffa0128000
i2c_i801 17008 0 - Live 0xffffffffa011c000
lpc_ich 16764 0 - Live 0xffffffffa0111000
cdrom 35173 1 sr_mod, Live 0xffffffffa0102000
mii 12675 1 r8169, Live 0xffffffffa00fd000
hwmon 12481 3 i8k,coretemp,radeon, Live 0xffffffffa007b000
mfd_core 12601 1 lpc_ich, Live 0xffffffffa00f8000
evdev 17574 22 - Live 0xffffffffa0122000
ext4 395534 2 - Live 0xffffffffa0096000
crc16 12343 2 bluetooth,ext4, Live 0xffffffffa0076000
mbcache 13082 1 ext4, Live 0xffffffffa005c000
jbd2 76742 1 ext4, Live 0xffffffffa0082000
sd_mod 40582 7 - Live 0xffffffffa0067000
crc_t10dif 12348 1 sd_mod, Live 0xffffffffa0062000
ahci 25148 4 - Live 0xffffffffa0034000
libahci 23136 1 ahci, Live 0xffffffffa0029000
libata 122267 2 ahci,libahci, Live 0xffffffffa003d000
scsi_mod 162504 6 usb_storage,rts5139,sg,sr_mod,sd_mod,libata, Live
0xffffffffa0000000

 $ cat /proc/iomem
00000000-00000fff : reserved
00001000-00087fff : System RAM
00088000-000bffff : reserved
  000a0000-000bffff : PCI Bus 0000:00
000c0000-000cedff : Video ROM
000cf000-000d8dff : Adapter ROM
000d9000-000d9fff : Adapter ROM
000f0000-000fffff : System ROM
00100000-1fffffff : System RAM
  01000000-0149cd32 : Kernel code
  0149cd33-018b38bf : Kernel data
  019a8000-01a84fff : Kernel bss
20000000-201fffff : reserved
  20000000-201fffff : pnp 00:0a
20200000-40003fff : System RAM
40004000-40004fff : reserved
  40004000-40004fff : pnp 00:0a
40005000-8ffaffff : System RAM
8ffb0000-913affff : reserved
913b0000-99dbefff : System RAM
99dbf000-9aebefff : reserved
9aebf000-9afbefff : ACPI Non-volatile Storage
9afbf000-9affefff : ACPI Tables
9afff000-9affffff : System RAM
9b000000-9f9fffff : reserved
9fa00000-feafffff : PCI Bus 0000:00
  9fa00000-9fa00fff : pnp 00:09
  a0000000-afffffff : PCI Bus 0000:01
    a0000000-afffffff : 0000:01:00.0
  b0000000-bfffffff : 0000:00:02.0
  c0000000-c0ffffff : PCI Bus 0000:01
    c0000000-c003ffff : 0000:01:00.0
    c0040000-c005ffff : 0000:01:00.0
  c1000000-c13fffff : 0000:00:02.0
  c1400000-c14fffff : PCI Bus 0000:07
    c1400000-c1403fff : 0000:07:00.0
      c1400000-c1403fff : r8169
    c1404000-c1404fff : 0000:07:00.0
      c1404000-c1404fff : r8169
  c1500000-c15fffff : PCI Bus 0000:08
    c1500000-c1501fff : 0000:08:00.0
      c1500000-c1501fff : iwlwifi
  c1600000-c160ffff : 0000:00:14.0
    c1600000-c160ffff : xhci_hcd
  c1610000-c1613fff : 0000:00:1b.0
    c1610000-c1613fff : ICH HD audio
  c1614000-c161400f : 0000:00:16.0
    c1614000-c161400f : mei_me
  c1615000-c16150ff : 0000:00:1f.3
  c1617000-c16177ff : 0000:00:1f.2
    c1617000-c16177ff : ahci
  c1618000-c16183ff : 0000:00:1d.0
    c1618000-c16183ff : ehci_hcd
  c1619000-c16193ff : 0000:00:1a.0
    c1619000-c16193ff : ehci_hcd
  e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
    e0000000-efffffff : reserved
      e0000000-efffffff : pnp 00:09
feb00000-feb03fff : reserved
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
fed10000-fed19fff : reserved
  fed10000-fed17fff : pnp 00:09
  fed18000-fed18fff : pnp 00:09
  fed19000-fed19fff : pnp 00:09
fed1c000-fed1ffff : reserved
  fed1c000-fed1ffff : pnp 00:09
    fed1f410-fed1f414 : iTCO_wdt
fed20000-fed3ffff : pnp 00:09
fed90000-fed93fff : pnp 00:09
fee00000-fee00fff : Local APIC
  fee00000-fee00fff : reserved
ff000000-ff000fff : pnp 00:09
ffb80000-ffffffff : reserved
100000000-25f5fffff : System RAM
25f600000-25fffffff : RAM buffer

 $ cat /proc/ioports
0000-0cf7 : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0062-0062 : EC data
  0064-0064 : keyboard
  0066-0066 : EC cmd
  0070-0077 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : fpu
  0400-0403 : ACPI PM1a_EVT_BLK
  0404-0405 : ACPI PM1a_CNT_BLK
  0408-040b : ACPI PM_TMR
  0410-0415 : ACPI CPU throttle
  0420-042f : ACPI GPE0_BLK
  0430-0433 : iTCO_wdt
  0450-0450 : ACPI PM2_CNT_BLK
  0454-0457 : pnp 00:06
  0458-047f : pnp 00:04
    0460-047f : iTCO_wdt
  0500-057f : pnp 00:04
  0680-069f : pnp 00:04
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
  1100-110f : pnp 00:04
  164e-164f : pnp 00:04
  2000-2fff : PCI Bus 0000:07
    2000-20ff : 0000:07:00.0
      2000-20ff : r8169
  3000-3fff : PCI Bus 0000:01
    3000-30ff : 0000:01:00.0
  4000-403f : 0000:00:02.0
  4040-405f : 0000:00:1f.3
  4060-407f : 0000:00:1f.2
    4060-407f : ahci
  4080-4087 : 0000:00:1f.2
    4080-4087 : ahci
  4088-408f : 0000:00:1f.2
    4088-408f : ahci
  4090-4093 : 0000:00:1f.2
    4090-4093 : ahci
  4094-4097 : 0000:00:1f.2
    4094-4097 : ahci
  fd60-fd63 : pnp 00:04
  ffff-ffff : pnp 00:04
    ffff-ffff : pnp 00:04


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