panic on ifconfig tun0 destroy

Mon Dec 22 09:11:25 UTC 2008

On Sun, 2008-12-21 at 18:00 -0800, Li, Qing wrote:
> I have committed a fix for this bug based on discussion with Kip.
> I have tested various combination and the fix appears to be stable.
> Please sync if_tun.c to r186391 and let me know if it fixes your
> situation.

I will do so and let you know, (it will take some time.)

Marten

> 
> -- Qing
> 
> 
> -----Original Message-----
> From: owner-freebsd-current at freebsd.org on behalf of Li, Qing
> Sent: Sun 12/21/2008 3:28 PM
> To: Marten Vijn
> Cc: freebsd-current at freebsd.org
> Subject: RE: panic on ifconfig tun0 destroy
>  
> 
> I found a simpler way to reproduce the problem now.
> 
> -----------------------------------
> ifconfig tun0 create
> 
> dd if=/dev/tun0 bs=512|hexdump
> 
> ifconfig tun0 destroy
> -----------------------------------
> 
> There appears to be a behavior change. In 7.x the destroy
> will block until the dd process exits and closes the
> tun0 device. In -current the call returns immediately
> and the assertion on TUN_OPEN fires and core dumps.
> 
> -- Qing
> 
> 
> -----Original Message-----
> From: Marten Vijn [mailto:info at martenvijn.nl]
> Sent: Sun 12/21/2008 12:09 PM
> To: Li, Qing
> Cc: freebsd-current at freebsd.org
> Subject: RE: panic on ifconfig tun0 destroy
>  
> 
> On Sun, 2008-12-21 at 11:16 -0800, Li, Qing wrote:
> > I have seen this crash but I wasn't able to reproduce it consistently. An assertion fired in the if_tun cleanup code. I am currently working on a nfsclient/bootp issue, so I can look into this problem as soon as I am done patching the bootp bug.
> > 
> 
> reproduction:
> 
> My setup: http://martenvijn.nl/trac/wiki/hsdpa
> 
> You don't need the dongle to panic the system 
> 
> start the ppp connection
> 
> ppp
> > dial default
> 
> and destroy the interface
> 
> ifconfig tun0 
> 
> 
> kind regards
> Marten
> 
> 
> > -- Qing
> > 
> > -----Original Message-----
> > From: Marten Vijn <info at martenvijn.nl>
> > Sent: Saturday, December 20, 2008 12:24 PM
> > To: freebsd-current at freebsd.org <freebsd-current at freebsd.org>
> > Subject: panic on ifconfig tun0 destroy
> > 
> > hi
> > 
> > I am trying to setup a hsdpa connection using the 
> > u3g driver. The connection did not succeed (due unknown reasons yet)
> > 
> > On debugging my ppp.conf I restarted my pppd with
> > 
> > /etc/rc.d/ppp restart
> > 
> > Then when try to remove the tun0 interface the system panics
> > 
> > kind regards,
> > Marten 
> > 
> > 
> > bert# dmesg
> > Copyright (c) 1992-2008 The FreeBSD Project.
> > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> > 	The Regents of the University of California. All rights reserved.
> > FreeBSD is a registered trademark of The FreeBSD Foundation.
> > FreeBSD 8.0-CURRENT #2: Sat Dec 20 16:12:23 UTC 2008
> >     root at bert:/usr/obj/usr/src/sys/GENERIC
> > WARNING: WITNESS option enabled, expect reduced performance.
> > Timecounter "i8254" frequency 1193182 Hz quality 0
> > CPU: Mobile Intel(R) Pentium(R) 4     CPU 3.06GHz (3059.22-MHz 686-class
> > CPU)
> >   Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
> > 
> > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> >   Features2=0x4400<CNXT-ID,xTPR>
> >   Logical CPUs per core: 2
> > real memory  = 1073152000 (1023 MB)
> > avail memory = 1032577024 (984 MB)
> > ACPI APIC Table: <PTLTD  	 APIC  >
> > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
> >  cpu0 (BSP): APIC ID:  0
> >  cpu1 (AP): APIC ID:  1
> > ioapic0 <Version 2.0> irqs 0-23 on motherboard
> > kbd1 at kbdmux0
> > acpi0: <PTLTD   RSDT> on motherboard
> > acpi0: [ITHREAD]
> > acpi0: Power Button (fixed)
> > Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> > acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
> > acpi_ec0: <Embedded Controller: GPE 0x1c> port 0x62,0x66 on acpi0
> > acpi_button0: <Sleep Button> on acpi0
> > acpi_lid0: <Control Method Lid Switch> on acpi0
> > pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> > pci0: <ACPI PCI bus> on pcib0
> > agp0: <Intel 82865 host to AGP bridge> on hostb0
> > pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
> > pci1: <ACPI PCI bus> on pcib1
> > vgapci0: <VGA-compatible display> mem
> > 0xd1000000-0xd1ffffff,0xe0000000-0xefffffff irq 16 at device 0.0 on pci1
> > uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0x1cc0-0x1cdf
> > irq 16 at device 29.0 on pci0
> > uhci0: [GIANT-LOCKED]
> > uhci0: [ITHREAD]
> > usb0: <Intel 82801EB (ICH5) USB controller USB-A> on uhci0
> > usb0: USB revision 1.0
> > uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
> > uhub0: 2 ports with 2 removable, self powered
> > uhci1: <Intel 82801EB (ICH5) USB controller USB-B> port 0x1ce0-0x1cff
> > irq 19 at device 29.1 on pci0
> > uhci1: [GIANT-LOCKED]
> > uhci1: [ITHREAD]
> > usb1: <Intel 82801EB (ICH5) USB controller USB-B> on uhci1
> > usb1: USB revision 1.0
> > uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
> > uhub1: 2 ports with 2 removable, self powered
> > uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0x2000-0x201f
> > irq 18 at device 29.2 on pci0
> > uhci2: [GIANT-LOCKED]
> > uhci2: [ITHREAD]
> > usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2
> > usb2: USB revision 1.0
> > uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
> > uhub2: 2 ports with 2 removable, self powered
> > uhci3: <Intel 82801EB (ICH5) USB controller USB-D> port 0x2020-0x203f
> > irq 16 at device 29.3 on pci0
> > uhci3: [GIANT-LOCKED]
> > uhci3: [ITHREAD]
> > usb3: <Intel 82801EB (ICH5) USB controller USB-D> on uhci3
> > usb3: USB revision 1.0
> > uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
> > uhub3: 2 ports with 2 removable, self powered
> > ehci0: <Intel 82801EB/R (ICH5) USB 2.0 controller> mem
> > 0xd0000000-0xd00003ff irq 23 at device 29.7 on pci0
> > ehci0: [GIANT-LOCKED]
> > ehci0: [ITHREAD]
> > usb4: EHCI version 1.0
> > usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
> > usb4: <Intel 82801EB/R (ICH5) USB 2.0 controller> on ehci0
> > usb4: USB revision 2.0
> > uhub4: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4
> > uhub4: 8 ports with 8 removable, self powered
> > pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
> > pci3: <ACPI PCI bus> on pcib2
> > cbb0: <TI6420 PCI-CardBus Bridge> at device 4.0 on pci3
> > cardbus0: <CardBus bus> on cbb0
> > pccard0: <16-bit PCCard bus> on cbb0
> > cbb0: [FILTER]
> > cbb1: <TI6420 PCI-CardBus Bridge> at device 4.1 on pci3
> > cardbus1: <CardBus bus> on cbb1
> > pccard1: <16-bit PCCard bus> on cbb1
> > cbb1: [FILTER]
> > fwohci0: <1394 Open Host Controller Interface> mem
> > 0xd2015000-0xd20157ff,0xd2010000-0xd2013fff irq 23 at device 4.2 on pci3
> > fwohci0: [FILTER]
> > fwohci0: OHCI version 1.10 (ROM=0)
> > fwohci0: No. of Isochronous channels is 4.
> > fwohci0: EUI64 12:34:56:78:12:34:56:78
> > fwohci0: Phy 1394a available S400, 2 ports.
> > fwohci0: Link S400, max_rec 2048 bytes.
> > firewire0: <IEEE1394(FireWire) bus> on fwohci0
> > dcons_crom0: <dcons configuration ROM> on firewire0
> > dcons_crom0: bus_addr 0x1494000
> > fwe0: <Ethernet over FireWire> on firewire0
> > if_fwe0: Fake Ethernet address: 12:34:56:34:56:78
> > fwe0: Ethernet address: 12:34:56:34:56:78
> > fwip0: <IP over FireWire> on firewire0
> > fwip0: Firewire address: 12:34:56:78:12:34:56:78 @ 0xfffe00000000, S400,
> > maxrec 2048
> > sbp0: <SBP-2/SCSI over FireWire> on firewire0
> > fwohci0: Initiate bus reset
> > fwohci0: BUS reset
> > fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
> > pci3: <mass storage> at device 4.3 (no driver attached)
> > rl0: <RealTek 8139 10/100BaseTX> port 0x3000-0x30ff mem
> > 0xd2015800-0xd20158ff irq 19 at device 5.0 on pci3
> > miibus0: <MII bus> on rl0
> > rlphy0: <RealTek internal media interface> PHY 0 on miibus0
> > rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> > rl0: Ethernet address: 00:0a:e4:55:3b:8f
> > rl0: [ITHREAD]
> > ath0: <Atheros 5212> mem 0xd2000000-0xd200ffff irq 18 at device 6.0 on
> > pci3
> > ath0: [ITHREAD]
> > ath0: WARNING: using obsoleted if_watchdog interface
> > ath0: mac 5.9 phy 4.3 radio 3.6
> > isab0: <PCI-ISA bridge> at device 31.0 on pci0
> > isa0: <ISA bus> on isab0
> > atapci0: <Intel ICH5 UDMA100 controller> port
> > 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x2060-0x206f at device 31.1 on pci0
> > ata0: <ATA channel 0> on atapci0
> > ata0: [ITHREAD]
> > ata1: <ATA channel 1> on atapci0
> > ata1: [ITHREAD]
> > pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
> > pci0: <multimedia, audio> at device 31.5 (no driver attached)
> > pci0: <simple comms, generic modem> at device 31.6 (no driver attached)
> > acpi_tz0: <Thermal Zone> on acpi0
> > acpi_button1: <Power Button> on acpi0
> > atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
> > atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> > atkbd0: <AT Keyboard> irq 1 on atkbdc0
> > kbd0 at atkbd0
> > atkbd0: [GIANT-LOCKED]
> > atkbd0: [ITHREAD]
> > psm0: <PS/2 Mouse> irq 12 on atkbdc0
> > psm0: [GIANT-LOCKED]
> > psm0: [ITHREAD]
> > psm0: model Generic PS/2 mouse, device ID 0
> > uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
> > uart0: [FILTER]
> > battery0: <ACPI Control Method Battery> on acpi0
> > acpi_acad0: <AC Adapter> on acpi0
> > cpu0: <ACPI CPU> on acpi0
> > acpi_perf0: <ACPI CPU Frequency Control> on cpu0
> > p4tcc0: <CPU Frequency Thermal Control> on cpu0
> > cpu1: <ACPI CPU> on acpi0
> > p4tcc1: <CPU Frequency Thermal Control> on cpu1
> > pmtimer0 on isa0
> > orm0: <ISA Option ROMs> at iomem 0xd0000-0xd0fff,0xdc000-0xdffff pnpid
> > ORM0000 on isa0
> > sc0: <System console> at flags 0x100 on isa0
> > sc0: VGA <16 virtual consoles, flags=0x300>
> > vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
> > isa0
> > ppc0: parallel port not found.
> > uart1: <16550 or compatible> at port 0x2f8-0x2ff irq 3 on isa0
> > uart1: [FILTER]
> > Timecounters tick every 1.000 msec
> > firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
> > firewire0: bus manager 0 (me)
> > ad0: 76319MB <IC25N080ATMR04 0 MO4OAD4A> at ata0-master UDMA100
> > acd0: DVDR <HL-DT-ST DVD-RW GWA-4040N/1.01> at ata1-master UDMA33
> > GEOM: ad0s2: geometry does not match label.
> > GEOM: ad0s3: geometry does not match label.
> > SMP: AP CPU #1 Launched!
> > WARNING: WITNESS option enabled, expect reduced performance.
> > Trying to mount root from ufs:/dev/ad0s3a
> > WARNING: / was not properly dismounted
> > lock order reversal:
> >  1st 0xc456c044 user map (user map) @ /usr/src/sys/vm/vm_map.c:3115
> >  2nd 0xc49137ac ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2079
> > KDB: stack backtrace:
> > db_trace_self_wrapper(c0bdfc8c,c41be90c,c0870b75,4,c0bdb1ef,...) at
> > db_trace_self_wrapper+0x26
> > kdb_backtrace(4,c0bdb1ef,c4521728,c4526868,c41be968,...) at
> > kdb_backtrace+0x29
> > _witness_debugger(c0be2976,c49137ac,c0bd6275,c4526868,c0be968d,...) at
> > _witness_debugger+0x25
> > witness_checkorder(c49137ac,1,c0be968d,81f,0,...) at witness_checkorder
> > +0x839
> > __lockmgr_args(c49137ac,200501,c49137c8,0,0,...) at __lockmgr_args+0x237
> > ffs_lock(c41bea78,c087091b,c0c05687,200501,c4913754,...) at ffs_lock
> > +0x8a
> > VOP_LOCK1_APV(c0ce5d40,c41bea78,c4568e24,c0cf9e20,c4913754,...) at
> > VOP_LOCK1_APV+0xa5
> > _vn_lock(c4913754,200501,c0be968d,81f,4,...) at _vn_lock+0x5e
> > vget(c4913754,200501,c4568d80,4b4,0,...) at vget+0xc9
> > vnode_pager_lock(c187d07c,0,c0c02c69,127,c41bec18,...) at
> > vnode_pager_lock+0x1e0
> > vm_fault(c456c000,80db000,2,8,80db780,...) at vm_fault+0x1df
> > trap_pfault(5,0,c0c1298d,2e7,c4566d34,...) at trap_pfault+0x118
> > trap(c41bed38) at trap+0x289
> > calltrap() at calltrap+0x6
> > --- trap 0xc, eip = 0x80480e5, esp = 0xbfbfeef0, ebp = 0xbfbfef10 ---
> > WARNING: /tmp was not properly dismounted
> > WARNING: /usr was not properly dismounted
> > WARNING: /var was not properly dismounted
> > ppc0: parallel port not found.
> > ppc0: parallel port not found.
> > ppc0: parallel port not found.
> > pcm0: <Intel ICH5 (82801EB)> port 0x1400-0x14ff,0x1c80-0x1cbf mem
> > 0xd0000c00-0xd0000dff,0xd0000800-0xd00008ff irq 17 at device 31.5 on
> > pci0
> > pcm0: [ITHREAD]
> > pcm0: <Avance Logic ALC655 AC97 Codec>
> > ppc0: parallel port not found.
> > ppc0: parallel port not found.
> > rl0: link state changed to DOWN
> > rl0: link state changed to UP
> > lock order reversal:
> >  1st 0xc4fda7ac ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:424
> >  2nd 0xd8520990 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443
> >  3rd 0xc4ac2594 ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:545
> > KDB: stack backtrace:
> > db_trace_self_wrapper(c0bdfc8c,c436940c,c0870b75,4,c0bdb1ef,...) at
> > db_trace_self_wrapper+0x26
> > kdb_backtrace(4,c0bdb1ef,c45236d8,c4526868,c4369468,...) at
> > kdb_backtrace+0x29
> > _witness_debugger(c0be298f,c4ac2594,c0bd6275,c4526868,c0bff2aa,...) at
> > _witness_debugger+0x25
> > witness_checkorder(c4ac2594,9,c0bff2aa,221,0,...) at witness_checkorder
> > +0x839
> > __lockmgr_args(c4ac2594,80100,c4ac25b0,0,0,...) at __lockmgr_args+0x797
> > ffs_lock(c4369578,c0e6e7a8,c47fb9a4,80100,c4ac253c,...) at ffs_lock+0x8a
> > VOP_LOCK1_APV(c0ce5d40,c4369578,c4369598,c0cf9e20,c4ac253c,...) at
> > VOP_LOCK1_APV+0xa5
> > _vn_lock(c4ac253c,80100,c0bff2aa,221,c4553200,...) at _vn_lock+0x5e
> > ffs_snapshot(c4ac5500,c4ad64e0,c0c00c0f,15e,3,...) at ffs_snapshot
> > +0x1527
> > ffs_mount(c4ac5500,c47fb900,c0be906e,3cb,c4d0d7f0,...) at ffs_mount
> > +0x146f
> > vfs_donmount(c47fb900,211000,c4c9d900,c4c9d900,201000,...) at
> > vfs_donmount+0x1312
> > nmount(c47fb900,c4369cf8,c,c4369d38,c0cc32f0,...) at nmount+0xbe
> > syscall(c4369d38) at syscall+0x2a3
> > Xint0x80_syscall() at Xint0x80_syscall+0x20
> > --- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e6c8b, esp =
> > 0xbfbfeb1c, ebp = 0xbfbfee78 ---
> > lock order reversal:
> >  1st 0xd8520990 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443
> >  2nd 0xc4e4c6dc snaplk (snaplk)
> > @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:794
> > KDB: stack backtrace:
> > db_trace_self_wrapper(c0bdfc8c,c436940c,c0870b75,4,c0bdb1ef,...) at
> > db_trace_self_wrapper+0x26
> > kdb_backtrace(4,c0bdb1ef,c45236d8,c45272f8,c4369468,...) at
> > kdb_backtrace+0x29
> > _witness_debugger(c0be2976,c4e4c6dc,c0bff30c,c45272f8,c0bff2aa,...) at
> > _witness_debugger+0x25
> > witness_checkorder(c4e4c6dc,9,c0bff2aa,31a,c4fda7c8,...) at
> > witness_checkorder+0x839
> > __lockmgr_args(c4e4c6dc,80400,c4fda7c8,0,0,...) at __lockmgr_args+0x797
> > ffs_lock(c4369578,0,0,80400,c4fda754,...) at ffs_lock+0x8a
> > VOP_LOCK1_APV(c0ce5d40,c4369578,c1955f20,c0cf9e20,c4fda754,...) at
> > VOP_LOCK1_APV+0xa5
> > _vn_lock(c4fda754,80400,c0bff2aa,31a,0,...) at _vn_lock+0x5e
> > ffs_snapshot(c4ac5500,c4ad64e0,c0c00c0f,15e,3,...) at ffs_snapshot
> > +0x28c6
> > ffs_mount(c4ac5500,c47fb900,c0be906e,3cb,c4d0d7f0,...) at ffs_mount
> > +0x146f
> > vfs_donmount(c47fb900,211000,c4c9d900,c4c9d900,201000,...) at
> > vfs_donmount+0x1312
> > nmount(c47fb900,c4369cf8,c,c4369d38,c0cc32f0,...) at nmount+0xbe
> > syscall(c4369d38) at syscall+0x2a3
> > Xint0x80_syscall() at Xint0x80_syscall+0x20
> > --- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e6c8b, esp =
> > 0xbfbfeb1c, ebp = 0xbfbfee78 ---
> > lock order reversal:
> >  1st 0xc4e4c6dc snaplk (snaplk) @ /usr/src/sys/kern/vfs_vnops.c:293
> >  2nd 0xc4fda7ac ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:1588
> > KDB: stack backtrace:
> > db_trace_self_wrapper(c0bdfc8c,c43698c4,c0870b75,4,c0bdb1ef,...) at
> > db_trace_self_wrapper+0x26
> > kdb_backtrace(4,c0bdb1ef,c45272f8,c4526868,c4369920,...) at
> > kdb_backtrace+0x29
> > _witness_debugger(c0be2976,c4fda7ac,c0bd6275,c4526868,c0bff2aa,...) at
> > _witness_debugger+0x25
> > witness_checkorder(c4fda7ac,9,c0bff2aa,634,0,...) at witness_checkorder
> > +0x839
> > __lockmgr_args(c4fda7ac,80000,0,0,0,...) at __lockmgr_args+0x797
> > ffs_snapremove(c4fda754,c4ac5500,0,c0bea853,414,...) at ffs_snapremove
> > +0x11f
> > softdep_releasefile(c4e52528,c4369aa8,2,c0e6e778,c0cc7ba4,...) at
> > softdep_releasefile+0x3b
> > ufs_inactive(c4369ae8,c4fda7c8,c4fda754,c4fda7c8,c4369b00,...) at
> > ufs_inactive+0x1bc
> > VOP_INACTIVE_APV(c0ce5d40,c4369ae8,c0be968d,914,c0cf9de0,...) at
> > VOP_INACTIVE_APV+0xa5
> > vinactive(c0ce5d40,c4369b1c,c0be968d,8a0,128,...) at vinactive+0x8e
> > vput(c4fda754,c4369b54,c0bea853,125,c0cf9b60,...) at vput+0x1db
> > vn_close(c4fda754,1,c456d400,c47fb900,c4369be0,...) at vn_close+0xee
> > vn_closefile(c4b14e38,c47fb900,3,0,c4b14e38,...) at vn_closefile+0xe9
> > _fdrop(c4b14e38,c47fb900,c4369c1c,c08709bc,0,c47fb9a4,c0e6e778,c0cc93b0,c0bd7f59,c4ff632c,44f,c0bd7f59,c4369c44,c0839520,c4ff632c,8,c0bd7f59,44f) at _fdrop+0x43
> > closef(c4b14e38,c47fb900,44f,434,c4b14e38,...) at closef+0x290
> > kern_close(c47fb900,4,c4369d2c,c0b2fad3,c47fb900,...) at kern_close
> > +0x11d
> > close(c47fb900,c4369cf8,4,c0be371f,c0cc1010,...) at close+0x1a
> > syscall(c4369d38) at syscall+0x2a3
> > Xint0x80_syscall() at Xint0x80_syscall+0x20
> > --- syscall (6, FreeBSD ELF32, close), eip = 0x281844b3, esp =
> > 0xbfbfeb1c, ebp = 0xbfbfee78 ---
> > rl0: link state changed to DOWN
> > rl0: link state changed to UP
> > rl0: link state changed to DOWN
> > rl0: link state changed to UP
> > 
> > 
> > plugging usb huawei E620 => 
> > ucom0: <
> > \M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^? HUAWEI Mobile, class 0/0, rev 1.10/0.00, addr 2> on uhub1
> > ucom0: configured 3 serial ports (U0.%d)
> > umass0: <
> > \M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^? HUAWEI Mobile, class 0/0, rev 1.10/0.00, addr 2> on uhub1
> > cd0 at umass-sim0 bus 0 target 0 lun 0
> > cd0: <HUAWEI Mass Storage 2.31> Removable CD-ROM SCSI-2 device 
> > cd0: 1.000MB/s transfers
> > cd0: Attempt to query device size failed: NOT READY, Medium not present
> > da0 at umass-sim0 bus 0 target 0 lun 1
> > da0: <HUAWEI SD Storage 2.31> Removable Direct Access SCSI-2 device 
> > da0: 1.000MB/s transfers
> > da0: Attempt to query device size failed: NOT READY, Medium not present
> > 
> > bert# ppp
> > Loading /lib/libalias_cuseeme.so
> > Loading /lib/libalias_ftp.so
> > Loading /lib/libalias_irc.so
> > Loading /lib/libalias_nbt.so
> > Loading /lib/libalias_pptp.so
> > Loading /lib/libalias_skinny.so
> > Loading /lib/libalias_smedia.so
> > Working in interactive mode
> > Using interface: tun0
> > ppp ON bert> dial default
> > ppp ON bert> Warning: Chat script failed
> > 
> > 
> > bert# ifconfig
> > fwe0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
> > 	options=8<VLAN_MTU>
> > 	ether 12:34:56:34:56:78
> > 	ch 1 dma -1
> > fwip0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
> > 	lladdr 12.34.56.78.12.34.56.78.a.2.ff.fe.0.0.0.0
> > rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> > 1500
> > 	options=8<VLAN_MTU>
> > 	ether 00:0a:e4:55:3b:8f
> > 	inet 192.168.178.75 netmask 0xffffff00 broadcast 192.168.178.255
> > 	media: Ethernet autoselect (100baseTX <full-duplex>)
> > 	status: active
> > ath0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290
> > 	ether 00:0b:6b:34:55:41
> > 	media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
> > 	status: no carrier
> > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> > 	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 
> > 	inet6 ::1 prefixlen 128 
> > 	inet 127.0.0.1 netmask 0xff000000 
> > tun0: flags=8010<POINTOPOINT,MULTICAST> metric 0 mtu 1500
> > 	inet 10.0.0.1 --> 10.0.0.2 netmask 0xffffffff 
> > 	Opened by PID 2120
> > 
> > after retrying my ppp config and restarting ppp
> > 
> > bert# /etc/rc.d/ppp restart
> > Stopping PPP profile: default(not running).
> > Starting PPP profile: defaultLoading /lib/libalias_cuseeme.so
> > Loading /lib/libalias_ftp.so
> > Loading /lib/libalias_irc.so
> > Loading /lib/libalias_nbt.so
> > Loading /lib/libalias_pptp.so
> > Loading /lib/libalias_skinny.so
> > Loading /lib/libalias_smedia.so
> > Warning: Add route failed: 0.0.0.0/0 already exists
> > Warning: Add route failed: 0.0.0.0/0 already exists
> > 
> > 
> > on ifconfig tun0 destroy:
> > 
> > KDB: enter: panic
> > [thread pid 2130 tid 100087 ]
> > Stopped at kdb_ent+03a: mov $0,kdb_why
> > > db
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> >   
> > 
> > 
> > 
> > 
-- 
Marten Vijn
linux 2.0.18 OpenBSD 3.6 FreeBSD 4.6
http://martenvijn.nl
http://opencommunitycamp.org
http://wifisoft.org