"Set Nickname" (8B1C) SIOCSIFFLAGS: Operation not supported

banggh · February 22, 2009, 4:28pm

info :
MB: P5V-VM DH
OS: OpenSUSE 11.1

bang@resolver:~> uname -r
2.6.27.7-9-pae

bang@resolver:~> lsusb
Bus 005 Device 004: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter

Settings :

bang@resolver:~> sudo /usr/sbin/iwconfig
**wlan0 IEEE 802.11bg ESSID:“tank”
Mode:Ad-Hoc Frequency:2.412 GHz Cell: Invalid
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Encryption key:31AA-0F6F-131A-60CA-124F-030B-81
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
**
Problem :

bang@resolver:~> sudo /sbin/ifconfig wlan0 up
SIOCSIFFLAGS: Operation not supported

bang@resolver:~> sudo /sbin/ifup wlan0
** wlan0 name: RTL8187_Wireless
command ‘iwconfig wlan0 nick resolver’ returned
Error for wireless request “Set Nickname” (8B1C) :
SET failed on device wlan0 ; Operation not supported.
interface wlan0 is not up**

lwfinger · February 22, 2009, 6:00pm

banggh wrote:
> info :
> MB: P5V-VM DH
> OS: OpenSUSE 11.1
>
> bang@resolver:~> uname -r
> 2.6.27.7-9-PAE
>
> bang@resolver:~> lsusb
> BUS 005 DEVICE 004: ID 0BDA:8187 REALTEK SEMICONDUCTOR CORP. RTL8187
> WIRELESS ADAPTER
>
> Settings :
>
> bang@resolver:~> sudo /usr/sbin/iwconfig
> WLAN0 IEEE 802.11BG ESSID:“TANK”
> MODE:AD-HOC FREQUENCY:2.412 GHZ CELL: INVALID
> TX-POWER=27 DBM
> RETRY MIN LIMIT:7 RTS THR:OFF FRAGMENT THR=2352 B
> ENCRYPTION KEY:31AA-0F6F-131A-60CA-124F-030B-81

You just publicly posted your WPA encryption key.

> POWER MANAGEMENT:OFF
> LINK QUALITY:0 SIGNAL LEVEL:0 NOISE LEVEL:0
> RX INVALID NWID:0 RX INVALID CRYPT:0 RX INVALID FRAG:0
> TX EXCESSIVE RETRIES:0 INVALID MISC:0 MISSED BEACON:0
>
> Problem :
>
> bang@resolver:~> sudo /sbin/ifconfig wlan0 up
> SIOCSIFFLAGS: OPERATION NOT SUPPORTED
>
> bang@resolver:~> sudo /sbin/ifup wlan0
> * wlan0 name: RTL8187_Wireless
> command ‘iwconfig wlan0 nick resolver’ returned
> Error for wireless request “Set Nickname” (8B1C) :
> SET failed on device wlan0 ; Operation not supported.
> interface wlan0 is not up*

The “nickname” command is not implemented, and never will be. Remove that
request from /etc/sysconfig/network/ifcfg-wlan0.

Larry

banggh · February 22, 2009, 7:08pm

/etc/sysconfig/network/ifcfg-wlan0
“WIRELESS_NICK = ‘’” string … deleted …

bang@resolver:/etc/sysconfig/network> sudo /sbin/ifup wlan0
wlan0 name: RTL8187_Wireless
command ‘iwconfig wlan0 nick resolver’ returned
Error for wireless request “Set Nickname” (8B1C) :
SET failed on device wlan0 ; Operation not supported.
interface wlan0 is not up

/etc/sysconfig/network/ifcfg-wlan0 :
BOOTPROTO=‘static’
BROADCAST=’’
ETHTOOL_OPTIONS=’’
IPADDR=‘192.168.1.1/24’
MTU=’’
NAME=‘RTL8187_Wireless’
NETMASK=’’
NETWORK=’’
REMOTE_IPADDR=’’
STARTMODE=‘hotplug’
USERCONTROL=‘yes’
WIRELESS_AP=’’
WIRELESS_AUTH_MODE=‘open’
WIRELESS_BITRATE=‘auto’
WIRELESS_CA_CERT=’’
WIRELESS_CHANNEL=’’
WIRELESS_CLIENT_CERT=’’
WIRELESS_CLIENT_KEY=’’
WIRELESS_CLIENT_KEY_PASSWORD=’’
WIRELESS_DEFAULT_KEY=‘0’
WIRELESS_EAP_AUTH=’’
WIRELESS_EAP_MODE=’’
WIRELESS_ESSID=‘tank’
WIRELESS_FREQUENCY=’’
WIRELESS_KEY=’’
WIRELESS_KEY_0=‘h:xxxxxxxxxxxx’
WIRELESS_KEY_1=’’
WIRELESS_KEY_2=’’
WIRELESS_KEY_3=’’
WIRELESS_KEY_LENGTH=‘128’
WIRELESS_MODE=‘Ad-hoc’
WIRELESS_NWID=’’
WIRELESS_PEAP_VERSION=’’
WIRELESS_POWER=‘yes’
WIRELESS_WPA_ANONID=’’
WIRELESS_WPA_IDENTITY=’’
WIRELESS_WPA_PASSWORD=’’
WIRELESS_WPA_PSK=’’
PREFIXLEN=‘24’

lwfinger · February 22, 2009, 8:33pm

Sorry for the previous post. You need to delete the line

nick $WIRELESS_NICK

in file /etc/sysconfig/network/scripts/ifup-wireless. For completeness, delete
the same line in files /etc/sysconfig/network/scripts/ifdown-wireless and
/etc/sysconfig/network/scripts/ifstatus-wireless.

I’ll report this as a bug.

Larry

banggh · February 23, 2009, 12:05pm

bang@resolver:/etc/sysconfig/network> sudo /sbin/ifup wlan0
wlan0 name: RTL8187_Wireless
!!!interface wlan0 is not up!!!

???

lwfinger · February 23, 2009, 5:59pm

banggh wrote:
>
> bang@resolver:/etc/sysconfig/network> sudo /sbin/ifup wlan0
> wlan0 name: RTL8187_Wireless
> !!!interface wlan0 is not up!!!
>
> ???

First of all, the bug in the wireless script will be fixed for 11.2. The
openSUSE folks are not clear about what to do with 11.1 and SLED 11.

For you, I think it would be easier to use NetworkManager to control the
network. It takes care of a lot of details. Is there any reason for not doing so?

What is the output of the command ‘dmesg | grep rtl’?

Larry

banggh · February 23, 2009, 10:23pm

tried Network Manager … when connecting to the network computer hanging …

/==================== dmesg =====================/
…
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
wlan0: Selected IBSS BSSID da:32:9d:15:02:fc based on configured SSID
------------ cut here ]------------
WARNING: at net/mac80211/main.c:987 ieee80211_if_config+0x28/0x11c mac80211
Modules linked in: xt_physdev bridge stp bnep sco rfcomm l2cap bluetooth af_packet ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit snd_pcm_oss snd_mixer_oss binfmt_misc snd_seq ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns cpufreq_conservative nf_conntrack_ipv4 cpufreq_userspace nf_conntrack cpufreq_powersave ip_tables acpi_cpufreq speedstep_lib ip6table_filter ip6_tables x_tables ipv6 microcode fuse loop dm_mod tuner_simple tuner_types tea5767 tda9887 tda8290 tea5761 tuner arc4 ecb crypto_blkcipher saa7134 snd_hda_intel rtl8187 snd_usb_audio ir_common snd_usb_lib compat_ioctl32 snd_pcm mac80211 snd_rawmidi snd_timer snd_seq_device v4l2_common snd_page_alloc snd_hwdep ppdev eeprom_93cx6 videobuf_dma_sg rtc_cmos rtc_core videobuf_core gspca_sonixb snd 8139too rtc_lib i2c_viapro tveeprom 8139cp via_rhine gspca_main soundcore cfg80211 i2c_core mii floppy pcspkr parport_pc via_agp parport shpchp videodev button usb_storage pci_hotplug sr_mod agpgart v4l1_compat joydev cdrom sg usbhid hid ff_memless uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic via82cxxx ide_core ata_generic thermal processor thermal_sys hwmon pata_jmicron ahci sata_via pata_via libata scsi_mod dock
Supported: No
Pid: 12050, comm: iwconfig Tainted: G W 2.6.27.7-9-pae #1
<c0106570>] dump_trace+0x6b/0x249
<c01070a5>] show_trace+0x20/0x39
<c035175f>] dump_stack+0x71/0x76
<c012ddf8>] warn_on_slowpath+0x4d/0x70
<f976e6d8>] ieee80211_if_config+0x28/0x11c [mac80211]
<f9774a2d>] ieee80211_sta_join_ibss+0x88/0x38d [mac80211]
<f97767c4>] ieee80211_sta_find_ibss+0x16f/0x274 [mac80211]
<f9770d7d>] ieee80211_ioctl_siwessid+0xbb/0x134 [mac80211]
<c0343c47>] ioctl_standard_iw_point+0x143/0x1ca
<c0343d67>] ioctl_standard_call+0x99/0xd4
<c0343808>] wireless_process_ioctl+0xae/0xe8
<c03438e3>] wext_handle_ioctl+0xa1/0xae
<c02ee023>] dev_ioctl+0x574/0x593
<c01a6fdf>] vfs_ioctl+0x1f/0x62
<c01a7280>] do_vfs_ioctl+0x174/0x186
<c01a72d7>] sys_ioctl+0x45/0x5e
<c0104c9b>] sysenter_do_call+0x12/0x2f
<ffffe430>] 0xffffe430

— end trace fdd84d60674235a5 ]—
------------ cut here ]------------
WARNING: at net/mac80211/main.c:987 ieee80211_if_config+0x28/0x11c mac80211
Modules linked in: xt_physdev bridge stp bnep sco rfcomm l2cap bluetooth af_packet ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit snd_pcm_oss snd_mixer_oss binfmt_misc snd_seq ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns cpufreq_conservative nf_conntrack_ipv4 cpufreq_userspace nf_conntrack cpufreq_powersave ip_tables acpi_cpufreq speedstep_lib ip6table_filter ip6_tables x_tables ipv6 microcode fuse loop dm_mod tuner_simple tuner_types tea5767 tda9887 tda8290 tea5761 tuner arc4 ecb crypto_blkcipher saa7134 snd_hda_intel rtl8187 snd_usb_audio ir_common snd_usb_lib compat_ioctl32 snd_pcm mac80211 snd_rawmidi snd_timer snd_seq_device v4l2_common snd_page_alloc snd_hwdep ppdev eeprom_93cx6 videobuf_dma_sg rtc_cmos rtc_core videobuf_core gspca_sonixb snd 8139too rtc_lib i2c_viapro tveeprom 8139cp via_rhine gspca_main soundcore cfg80211 i2c_core mii floppy pcspkr parport_pc via_agp parport shpchp videodev button usb_storage pci_hotplug sr_mod agpgart v4l1_compat joydev cdrom sg usbhid hid ff_memless uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic via82cxxx ide_core ata_generic thermal processor thermal_sys hwmon pata_jmicron ahci sata_via pata_via libata scsi_mod dock
Supported: No
Pid: 12050, comm: iwconfig Tainted: G W 2.6.27.7-9-pae #1
<c0106570>] dump_trace+0x6b/0x249
<c01070a5>] show_trace+0x20/0x39
<c035175f>] dump_stack+0x71/0x76
<c012ddf8>] warn_on_slowpath+0x4d/0x70
<f976e6d8>] ieee80211_if_config+0x28/0x11c [mac80211]
<f9774c3d>] ieee80211_sta_join_ibss+0x298/0x38d [mac80211]
<f97767c4>] ieee80211_sta_find_ibss+0x16f/0x274 [mac80211]
<f9770d7d>] ieee80211_ioctl_siwessid+0xbb/0x134 [mac80211]
<c0343c47>] ioctl_standard_iw_point+0x143/0x1ca
<c0343d67>] ioctl_standard_call+0x99/0xd4
<c0343808>] wireless_process_ioctl+0xae/0xe8
<c03438e3>] wext_handle_ioctl+0xa1/0xae
<c02ee023>] dev_ioctl+0x574/0x593
<c01a6fdf>] vfs_ioctl+0x1f/0x62
<c01a7280>] do_vfs_ioctl+0x174/0x186
<c01a72d7>] sys_ioctl+0x45/0x5e
<c0104c9b>] sysenter_do_call+0x12/0x2f
<ffffe430>] 0xffffe430

— end trace fdd84d60674235a5 ]—
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
…
/======================================================/

lwfinger · February 24, 2009, 12:01am

banggh wrote:
> tried Network Manager … when connecting to the network computer
> hanging …
>
> /==================== dmesg =====================/
> …
> unexpected IRQ trap at vector a3
> irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
> ->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
> ->chip(): c051ae9c, no_irq_chip+0x0/0x40
> ->action(): 00000000
> IRQ_DISABLED set
> unexpected IRQ trap at vector a3
> irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
> ->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
> ->chip(): c051ae9c, no_irq_chip+0x0/0x40
> ->action(): 00000000
> IRQ_DISABLED set
> unexpected IRQ trap at vector a3
> wlan0: Selected IBSS BSSID da:32:9d:15:02:fc based on configured SSID

What is attached to the IRQ listed? Please post the output of

cat /proc/interrupts

Larry

banggh · February 24, 2009, 9:37am

bang@resolver:~> cat /proc/interrupts
CPU0 CPU1
0: 92 0 IO-APIC-edge timer
1: 14 0 IO-APIC-edge i8042
4: 1 0 IO-APIC-edge
6: 5 0 IO-APIC-edge floppy
7: 0 0 IO-APIC-edge parport0
8: 0 0 IO-APIC-edge rtc0
9: 0 0 IO-APIC-fasteoi acpi
14: 0 0 IO-APIC-edge pata_via
15: 8655 0 IO-APIC-edge pata_via
17: 69762 0 IO-APIC-fasteoi HDA Intel, eth1
18: 0 0 IO-APIC-fasteoi saa7134[0]
20: 8439 0 IO-APIC-fasteoi uhci_hcd:usb1
21: 27348 0 IO-APIC-fasteoi sata_via, uhci_hcd:usb3, ehci_hcd:usb5
22: 9 0 IO-APIC-fasteoi uhci_hcd:usb2
23: 0 0 IO-APIC-fasteoi uhci_hcd:usb4
28: 247256 0 IO-APIC-fasteoi ahci
29: 0 0 IO-APIC-fasteoi pata_jmicron
163: 22423122 0 none-<NULL>
222: 0 0 PCI-MSI-edge aerdrv
223: 0 0 PCI-MSI-edge aerdrv
NMI: 0 0 Non-maskable interrupts
LOC: 221651 239972 Local timer interrupts
RES: 21767 19731 Rescheduling interrupts
CAL: 380 273 function call interrupts
TLB: 1435 2561 TLB shootdowns
TRM: 0 0 Thermal event interrupts
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0

lwfinger · February 24, 2009, 7:51pm

I posted your data on the Linux Kernel Mailing List to see if I can get some
advice on locating the problem. In the meantime, what does the command ‘dmesg |
grep -i irq’ show?

Larry

banggh · February 24, 2009, 9:42pm

all dmesg by this:

IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set
unexpected IRQ trap at vector a3
irq 163, desc: c053af00, depth: 1, count: 0, unhandled: 0
->handle_irq(): c0166904, handle_bad_irq+0x0/0x1e8
->chip(): c051ae9c, no_irq_chip+0x0/0x40
->action(): 00000000
IRQ_DISABLED set

lwfinger · February 24, 2009, 9:49pm

The buffer for dmesg has wrapped around and lost the stuff I want. Try

grep -i irq /var/log/boot.msg

Larry

banggh · February 24, 2009, 10:14pm

bang@resolver:~> grep -i irq /var/log/boot.msg
<6>ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
<6>ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
<7>ACPI: IRQ0 used by override.
<7>ACPI: IRQ2 used by override.
<7>ACPI: IRQ9 used by override.
<4>ENABLING IO-APIC IRQs
<6>ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 6 7 10 11 12) *5
<6>ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 6 7 *10 11 12)
<6>ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 6 7 10 11 12)
<6>ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 6 7 10 *11 12)
<6>ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 6 7 10 11 12) *0, disabled.
<6>ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 6 7 10 11 12) *0, disabled.
<6>ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 6 7 10 11 12) *0, disabled.
<6>ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 6 7 10 *11 12)
<6>PCI: Using ACPI for IRQ routing
<6>pci 0000:00:02.0: PCI INT A -> GSI 27 (level, low) -> IRQ 27
<6>pci 0000:00:03.0: PCI INT A -> GSI 31 (level, low) -> IRQ 31
<6>Serial: 8250/16550 driver8 ports, IRQ sharing enabled
<6>serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
<6>00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
<6>PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
<6>serio: i8042 KBD port at 0x60,0x64 irq 1
<6>ata1: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xe400 irq 14
<6>ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xe408 irq 15
<6>sata_via 0000:00:0f.0: PCI INT B -> GSI 21 (level, low) -> IRQ 21
<6>sata_via 0000:00:0f.0: routed to hard irq line 11
<6>ata3: SATA max UDMA/133 cmd 0xfc00 ctl 0xf800 bmdma 0xec00 irq 21
<6>ata4: SATA max UDMA/133 cmd 0xf400 ctl 0xf000 bmdma 0xec08 irq 21
<6>ahci 0000:03:00.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28
<6>ata5: SATA max UDMA/133 abar m8192@0xdfdfe000 port 0xdfdfe100 irq 28
<6>ata6: SATA max UDMA/133 abar m8192@0xdfdfe000 port 0xdfdfe180 irq 28
<6>pata_jmicron 0000:03:00.1: PCI INT B -> GSI 29 (level, low) -> IRQ 29
<6>ata7: PATA max UDMA/100 cmd 0xbc00 ctl 0xb800 bmdma 0xac00 irq 29
<6>ata8: PATA max UDMA/100 cmd 0xb400 ctl 0xb000 bmdma 0xac08 irq 29
<6>uhci_hcd 0000:00:10.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
<6>uhci_hcd 0000:00:10.0: irq 20, io base 0x0000e000
<6>uhci_hcd 0000:00:10.1: PCI INT B -> GSI 22 (level, low) -> IRQ 22
<6>uhci_hcd 0000:00:10.1: irq 22, io base 0x0000dc00
<6>uhci_hcd 0000:00:10.2: PCI INT C -> GSI 21 (level, low) -> IRQ 21
<6>uhci_hcd 0000:00:10.2: irq 21, io base 0x0000d800
<6>uhci_hcd 0000:00:10.3: PCI INT D -> GSI 23 (level, low) -> IRQ 23
<6>uhci_hcd 0000:00:10.3: irq 23, io base 0x0000d400
<6>ehci_hcd 0000:00:10.4: PCI INT C -> GSI 21 (level, low) -> IRQ 21
<6>ehci_hcd 0000:00:10.4: irq 21, io mem 0xdffff000
<6>parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
<6>via-rhine 0000:00:12.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
<6>eth0: VIA Rhine II at 0x1d000, 00:18:f3:8b:7d:d8, IRQ 23.
<6>8139too 0000:04:03.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
<6>eth1: RealTek RTL8139 at 0xf96fc000, 00:18:e7:15:a2:6d, IRQ 17
<6>HDA Intel 0000:80:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
<6>saa7134 0000:04:04.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
<6>saa7134[0]: found at 0000:04:04.0, rev: 1, irq: 18, latency: 32, mmio: 0xdfcfe000
bang@resolver:~>