* PROBLEM: Kernel 2.4.20 crashes when a second isdn channel is opened by ibod
@ 2003-04-16 8:54 Arno Wilhelm
2003-04-16 9:33 ` Stephan von Krawczynski
0 siblings, 1 reply; 3+ messages in thread
From: Arno Wilhelm @ 2003-04-16 8:54 UTC (permalink / raw)
To: linux-kernel
Hello,
I guess we have detected a kernel bug in the isdn subsystem ( isdn_ppp.c ).
I have enclosed the bug report in this mail in the format that is asked by
the file "REPORTING-BUGS" in the kernel source directory.
If you need further assistance please mail to: a.wilhelm@phion.com
Regards,
Arno Wilhelm
[1.] One line summary of the problem:
Kernel 2.4.20 crashes when a second isdn channel is opened by ibod (isdn
bandwith daemon).
[2.] Full description of the problem/report:
After having connected to our internet provider via isdn, the kernel crashes
whenever the ibod daemons succeeds in opening a second isdn channel.
The last human readable messages are:
ippp0: all channels busy - requeuing!
Scheduling in iterrrupt
kernel BUG at sched.c; 564!
invalid operand: 0000
We have compiled a fresh unpatched kernel version 2.4.20 from www.kernel.org in
order to trace down the bug.
I have to say at this point that probably our internet provider does *not*
support channel bundling. So I guess that the second channel get's a new
connection. But I think that should be a reason for the kernel to crash ?
We can reproduce this problem very easily by:
- Starting ipppd and connecting to the provider
- Flood pinging the point to point partner so that ibod opens the second channel.
I will enclose in this mail the full oops message, /var/log/messages, and a
patch thar worked for us.
[3.] Keywords (i.e., modules, networking, kernel):
kernel 2.4.20, all channels busy - requeuing!, kernel BUG at sched.c; 564!,
isdn, ibod, second channel, isdn4k-utils 3.2p1,
[4.] Kernel version (from /proc/version):
cat /proc/version
Linux version 2.4.20 (root@vir) (gcc version 2.96 20000731 (Red Hat Linux 7.1
2.96-85)) #4 Thu Apr 10 14:41:07 CEST 2003
[5.] Output of Oops.. message (if applicable) with symbolic information resolved
(see Documentation/oops-tracing.txt)
ippp0: all channels busy - requeuing!
Scheduling in iterrrupt
kernel BUG at sched.c; 564!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0113cb3>] Not tainted
EFLAGS: 00010292
eax: 00000018 ebx: c0106df0 ecx: c5a48000 edx: 00000001
esi: c027c000 edi: c027c000 ebp: c027dfdc esp: c027dfb8
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c027d000)
Stack: c020e2be c027c000 c027c000 00000000 cfd90018 c0100018 c0106df0 c027c000
c027c000 c0106df0 c0106e9e 00000001 00098800 c0105000 0008e000 c027e708
Call Trace: [<c0106df0>] [<c0106df0>] [<c0106e9e>] [<c0105000>]
Code: 0f 0b 34 02 b6 e2 20 c0 58 8b 45 e8 c1 e0 05 05 00 6b 29 c0
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
<0>Rebooting in 120 seconds..
[6.] A small shell script or example program which triggers the problem (if
possible)
Use redhat isdn setup.
[7.] Environment
Not important !
[7.1.] Software (add the output of the ver_linux script here)
> ./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 virusnix 2.4.20 #4 Thu Apr 10 14:41:07 CEST 2003 i686 unknown
Gnu C 2.96
Gnu make 3.78.1
binutils 2.9.5.0.22
util-linux 2.10f
mount 2.10f
modutils 2.3.21
e2fsprogs 1.18
reiserfsprogs 3.x.0k-pre7
PPP 2.4.1
isdn4k-utils 3.2p1
Linux C Library 2.1.3
Dynamic linker (ldd) 2.1.3
Procps 2.0.6
Net-tools 1.54
Console-tools 0.3.3
Sh-utils 2.0
Modules Loaded hisax_fcpcipnp hisax_isac hisax isdn slhc e100
[7.2.] Processor information (from /proc/cpuinfo):
> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Celeron (Coppermine)
stepping : 10
cpu MHz : 951.689
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 mmx fxsr sse
bogomips : 1900.54
[7.3.] Module information (from /proc/modules):
> cat /proc/modules
hisax_fcpcipnp 7600 0 (unused)
hisax_isac 8400 0 [hisax_fcpcipnp]
hisax 511440 0 [hisax_fcpcipnp hisax_isac]
isdn 114256 0 [hisax]
slhc 4656 0 [isdn]
e100 52272 1
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
> cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
5000-500f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
d000-d00f : VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
d000-d007 : ide0
d008-d00f : ide1
d400-d41f : VIA Technologies, Inc. USB
d800-d81f : VIA Technologies, Inc. USB (#2)
dc00-dc1f : AVM Audiovisuelles MKTG & Computer System GmbH Fritz!PCI v2.0 ISDN
dc00-dc1f : fcpcipnp
e000-e0ff : PCI device 1050:6692 (Winbond Electronics Corp)
e400-e43f : Intel Corp. 82557/8/9 [Ethernet Pro 100]
e400-e43f : e100
e800-e83f : Intel Corp. 82557/8/9 [Ethernet Pro 100] (#2)
e800-e83f : e100
> cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-0ffeffff : System RAM
00100000-00208a6e : Kernel code
00208a6f-002778c3 : Kernel data
0fff0000-0fff2fff : ACPI Non-volatile Storage
0fff3000-0fffffff : ACPI Tables
d0000000-d7ffffff : S3 Inc. Savage 4
d8000000-dbffffff : VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
dd000000-dd07ffff : S3 Inc. Savage 4
dd080000-dd09ffff : Intel Corp. 82557/8/9 [Ethernet Pro 100]
dd080000-dd09ffff : e100
dd0a0000-dd0bffff : Intel Corp. 82557/8/9 [Ethernet Pro 100] (#2)
dd0a0000-dd0bffff : e100
dd0c0000-dd0c0fff : Intel Corp. 82557/8/9 [Ethernet Pro 100] (#2)
dd0c0000-dd0c0fff : e100
dd0c1000-dd0c1fff : Intel Corp. 82557/8/9 [Ethernet Pro 100]
dd0c1000-dd0c1fff : e100
dd0c2000-dd0c201f : AVM Audiovisuelles MKTG & Computer System GmbH Fritz!PCI
v2.0 ISDN
dd0c3000-dd0c3fff : PCI device 1050:6692 (Winbond Electronics Corp)
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
ffff0000-ffffffff : reserved
[7.5.] PCI information ('lspci -vvv' as root)
> lspci -vvv
00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 8 set
Region 0: Memory at d8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
Capabilities: [c0] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x
AGP] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0 set
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [80] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1+ D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0 set
Capabilities: [c0] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.1 IDE interface: VIA Technologies, Inc.
VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06) (prog-if
8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc.
VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 set
Region 4: I/O ports at d000 [size=16]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 set, cache line size 08
Interrupt: pin D routed to IRQ 10
Region 4: I/O ports at d400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 set, cache line size 08
Interrupt: pin D routed to IRQ 10
Region 4: I/O ports at d800 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin ? routed to IRQ 11
Capabilities: [68] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2- PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:09.0 Network controller: AVM Audiovisuelles MKTG & Computer System GmbH
Fritz!PCI v2.0 ISDN (rev 02)
Subsystem: AVM Audiovisuelles MKTG & Computer System GmbH: Unknown
device 0e00
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 5
Region 0: Memory at dd0c2000 (32-bit, non-prefetchable) [size=32]
Region 1: I/O ports at dc00 [size=32]
Capabilities: [40] Power Management version 2
Flags: PMEClk- AuxPwr- DSI- D1- D2+ PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:0a.0 Network controller: Winbond Electronics Corp W6692 (rev 01)
Subsystem: Technical Corp.: Unknown device 5678
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 7
Region 0: Memory at dd0c3000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at e000 [size=256]
00:0d.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0c)
Subsystem: IBM 10/100 Ethernet Server Adapter
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 8 min, 56 max, 32 set, cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: Memory at dd0c1000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at e400 [size=64]
Region 2: Memory at dd080000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- AuxPwr- DSI+ D1+ D2+ PME+
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
00:0e.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0c)
Subsystem: IBM 10/100 Ethernet Server Adapter
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 8 min, 56 max, 32 set, cache line size 08
Interrupt: pin A routed to IRQ 10
Region 0: Memory at dd0c0000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at e800 [size=64]
Region 2: Memory at dd0a0000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- AuxPwr- DSI+ D1+ D2+ PME+
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
00:0f.0 VGA compatible controller: S3 Inc. Savage 4 (rev 06) (prog-if 00 [VGA])
Subsystem: IBM: Unknown device 01c5
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 4 min, 255 max, 248 set, cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at dd000000 (32-bit, non-prefetchable) [size=512K]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- AuxPwr- DSI+ D1+ D2+ PME-
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
[7.6.] SCSI information (from /proc/scsi/scsi)
No SCSI !
[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):
[7.8] Other notes, patches, fixes, workarounds:
Patch that worked around the kernel crash:
----------------------------- snip -----------------------------------
--- isdn_ppp.c Fri Apr 11 09:03:09 2003
+++ isdn_ppp.c.new Thu Apr 10 14:37:43 2003
@@ -1174,9 +1174,10 @@
lp = isdn_net_get_locked_lp(nd);
if (!lp) {
- printk(KERN_WARNING "%s: all channels busy - requeuing!\n", netdev->name);
+ printk(KERN_WARNING "isdn_ppp.c:1177: %s: all channels busy -
requeuing!\n", netdev->name);
retval = 1;
- goto unlock;
+ //goto unlock;
+ goto out;
}
/* we have our lp locked from now on */
----------------------------- snip -----------------------------------
7.9 Logfile
Apr 9 19:14:06 virusnix kernel: CSLIP: code copyright 1989 Regents of the
University of California
Apr 9 19:14:06 virusnix kernel: ISDN subsystem Rev:
1.1.4.1/1.1.4.1/1.1.4.1/1.1.4.1/1.1.4.1/1.1.4.1 loaded
Apr 9 19:14:06 virusnix kernel: HiSax: Linux Driver for passive ISDN cards
Apr 9 19:14:06 virusnix kernel: HiSax: Version 3.5 (module)
Apr 9 19:14:06 virusnix kernel: HiSax: Layer1 Revision 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: Layer2 Revision 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: TeiMgr Revision 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: Layer3 Revision 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: LinkLayer Revision 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: Approval certification valid
Apr 9 19:14:06 virusnix kernel: HiSax: Approved with ELSA Microlink PCI cards
Apr 9 19:14:06 virusnix kernel: HiSax: Approved with Eicon Technology Diva 2.01
PCI cards
Apr 9 19:14:06 virusnix kernel: HiSax: Approved with Sedlbauer Speedfax + cards
Apr 9 19:14:06 virusnix kernel: HiSax: Approved with HFC-S PCI A based cards
Apr 9 19:14:06 virusnix kernel: hisax_isac: ISAC-S/ISAC-SX ISDN driver v0.1.0
Apr 9 19:14:06 virusnix kernel: hisax_fcpcipnp: Fritz!Card PCI/PCIv2/PnP ISDN
driver v0.0.1
Apr 9 19:14:06 virusnix kernel: HiSax: Card 1 Protocol EDSS1 Id=fcpcipnp0 (0)
Apr 9 19:14:06 virusnix kernel: HiSax: DSS1 Rev. 1.1.4.1
Apr 9 19:14:06 virusnix kernel: HiSax: 2 channels added
Apr 9 19:14:06 virusnix kernel: HiSax: MAX_WAITING_CALLS added
Apr 9 19:14:06 virusnix kernel: PCI: Found IRQ 5 for device 00:09.0
Apr 9 19:14:06 virusnix kernel: PCI: Sharing IRQ 5 with 00:0f.0
Apr 9 19:14:06 virusnix kernel: hisax_fcpcipnp: found adapter Fritz!Card PCI v2
at 00:09.0
Apr 9 19:14:08 virusnix ipppd[5029]: Found 2 devices: ,
Apr 9 19:14:08 virusnix ipppd[5030]: ipppd i2.2.12 (isdn4linux version of pppd
by MH) started
Apr 9 19:14:08 virusnix ipppd[5030]: init_unit: 0
Apr 9 19:14:08 virusnix ipppd[5030]: Connect[0]: /dev/ippp0, fd: 7
Apr 9 19:14:08 virusnix ipppd[5030]: init_unit: 1
Apr 9 19:14:08 virusnix ipppd[5030]: Connect[1]: /dev/ippp1, fd: 8
Apr 9 19:14:18 virusnix ibod[5032]: Parameter FILTER reconfigured to 10
Apr 9 19:14:18 virusnix kernel: ippp0: dialing 1 00718918898...
Apr 9 19:14:21 virusnix kernel: isdn_net: ippp0 connected
Apr 9 19:14:21 virusnix ipppd[5030]: Local number: , Remote number:
00718918898, Type: outgoing
Apr 9 19:14:21 virusnix ipppd[5030]: PHASE_WAIT -> PHASE_ESTABLISHED, ifunit:
0, linkunit: 0, fd: 7
Apr 9 19:14:21 virusnix ipppd[5030]: Remote message:
Apr 9 19:14:21 virusnix ipppd[5030]: MPPP negotiation, He: No We: No
Apr 9 19:14:21 virusnix ipppd[5030]: CCP enabled! Trying CCP.
Apr 9 19:14:21 virusnix ipppd[5030]: CCP: got ccp-unit 0 for link 0
(Compression Control Protocol)
Apr 9 19:14:21 virusnix ipppd[5030]: ccp_resetci!
Apr 9 19:14:21 virusnix ipppd[5030]: local IP address 212.68.32.62
Apr 9 19:14:21 virusnix ipppd[5030]: remote IP address 194.93.78.21
Apr 9 19:14:21 virusnix logger: Started device ippp0 with parameters ippp0
/dev/ippp0 0 212.68.32.62 194.93.78.21 ippp0
Apr 9 19:16:14 virusnix ibod[5032]: added new link
Apr 9 19:16:14 virusnix kernel: ippp1: dialing 1 00718918898...
Apr 9 19:16:23 virusnix kernel: isdn_net: local hangup ippp1
Apr 9 19:16:23 virusnix kernel: ippp1: Chargesum is 0
Apr 9 19:16:23 virusnix ibod[5032]: added new link
Apr 9 19:16:23 virusnix kernel: ippp1: dialing 1 00718918898...
Apr 9 19:16:32 virusnix kernel: isdn_net: local hangup ippp1
Apr 9 19:16:32 virusnix kernel: ippp1: Chargesum is 0
Apr 9 19:16:32 virusnix ibod[5032]: added new link
Apr 9 19:16:32 virusnix kernel: ippp1: dialing 1 00718918898...
Apr 9 19:16:34 virusnix kernel: isdn_net: ippp1 connected
Apr 9 19:16:34 virusnix ipppd[5030]: Local number: , Remote number:
00718918898, Type: outgoing
Apr 9 19:16:34 virusnix ipppd[5030]: PHASE_WAIT -> PHASE_ESTABLISHED, ifunit:
1, linkunit: 1, fd: 8
Apr 9 17:34:29 virusnix syslogd 1.3-3: restart
--
Mr Arno Wilhelm
phion Information Technologies GmbH
System Engineer
Eduard-Bodem-Gasse 1
A-6020 Innsbruck
www.phion.com
tel: +43 512 39 45 45
fax: +43 512 39 45 45 20
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PROBLEM: Kernel 2.4.20 crashes when a second isdn channel is opened by ibod
2003-04-16 8:54 PROBLEM: Kernel 2.4.20 crashes when a second isdn channel is opened by ibod Arno Wilhelm
@ 2003-04-16 9:33 ` Stephan von Krawczynski
2003-04-16 11:44 ` Arno Wilhelm
0 siblings, 1 reply; 3+ messages in thread
From: Stephan von Krawczynski @ 2003-04-16 9:33 UTC (permalink / raw)
To: Arno Wilhelm; +Cc: linux-kernel
This bug is known and fixed by Patrick McHardy <kaber@trash.net>.
Please use patch attached and confirm it works. Thank you.
See Changelog
On Wed, 16 Apr 2003 10:54:05 +0200
Arno Wilhelm <a.wilhelm@phion.com> wrote:
> Hello,
>
> I guess we have detected a kernel bug in the isdn subsystem ( isdn_ppp.c ).
> I have enclosed the bug report in this mail in the format that is asked by
> the file "REPORTING-BUGS" in the kernel source directory.
> If you need further assistance please mail to: a.wilhelm@phion.com
>
>
>
> Regards,
>
> Arno Wilhelm
--
Regards,
Stephan
diff -Nru a/drivers/isdn/isdn_net.c b/drivers/isdn/isdn_net.c
--- a/drivers/isdn/isdn_net.c Thu Mar 27 02:00:21 2003
+++ b/drivers/isdn/isdn_net.c Thu Mar 27 02:00:21 2003
@@ -2831,6 +2831,7 @@
/* If binding is exclusive, try to grab the channel */
save_flags(flags);
+ cli();
if ((i = isdn_get_free_channel(ISDN_USAGE_NET,
lp->l2_proto, lp->l3_proto, drvidx,
chidx, lp->msn)) < 0) {
diff -Nru a/drivers/isdn/isdn_ppp.c b/drivers/isdn/isdn_ppp.c
--- a/drivers/isdn/isdn_ppp.c Thu Mar 27 02:00:21 2003
+++ b/drivers/isdn/isdn_ppp.c Thu Mar 27 02:00:21 2003
@@ -1176,7 +1176,7 @@
if (!lp) {
printk(KERN_WARNING "%s: all channels busy - requeuing!\n", netdev->name);
retval = 1;
- goto unlock;
+ goto out;
}
/* we have our lp locked from now on */
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PROBLEM: Kernel 2.4.20 crashes when a second isdn channel is opened by ibod
2003-04-16 9:33 ` Stephan von Krawczynski
@ 2003-04-16 11:44 ` Arno Wilhelm
0 siblings, 0 replies; 3+ messages in thread
From: Arno Wilhelm @ 2003-04-16 11:44 UTC (permalink / raw)
To: linux-kernel
> This bug is known and fixed by Patrick McHardy <kaber@trash.net>.
> Please use patch attached and confirm it works. Thank you.
I have tried it out and it works for me. Thank you.
Regards,
Arno Wilhelm
--
Mr Arno Wilhelm
phion Information Technologies GmbH
System Engineer
Eduard-Bodem-Gasse 1
A-6020 Innsbruck
www.phion.com
tel: +43 512 39 45 45
fax: +43 512 39 45 45 20
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2003-04-16 11:32 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2003-04-16 8:54 PROBLEM: Kernel 2.4.20 crashes when a second isdn channel is opened by ibod Arno Wilhelm
2003-04-16 9:33 ` Stephan von Krawczynski
2003-04-16 11:44 ` Arno Wilhelm
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