* Strange error with jspy utility
@ 2012-05-18 21:50 Abdul Khan
2012-05-19 5:15 ` Kurt Van Dijck
2012-05-19 9:06 ` Strange error with jspy utility Oliver Hartkopp
0 siblings, 2 replies; 12+ messages in thread
From: Abdul Khan @ 2012-05-18 21:50 UTC (permalink / raw)
To: linux-can
Hi
I am facing strange error with jspy utility provided with j1939-utils
package. I am using can-j1939-utils, iproute2 and
can-j1939-linux-3.3.0-rc6 provided by Kurt.
#./jspy -P -v
OUTPUT:
===================
can0:20,0feda - !6 [1] 0a
can1:20,0feda - !6 [1] 0a
can0:40,0feda - !6 [1] 0a
can1:40,0feda - !6 [1] 0a
can0:40,0feda - !6 [1] 0a
can1:40,0feda - !6 [1] 0a
===================
I did following steps before running the jsr utility.
#./ip link set can0 type can bitrate 125000 triple-sampling on
#./ip link set can1 type can bitrate 125000 triple-sampling on
#./ip link set can0 j1939 on
#./ip link set can1 j1939 on
#./ip addr add dev can0 j1939 0x20
#./ip addr add dev can1 j1939 0x40
#ifconfig can0 up
#ifconfig can1 up
#./jsr can0:20,feda | ./jsr can1:40,feda
Following configuration, I am using on Linux machine
#./uname -a
OUTPUT:
===================
Linux 3.3.0-rc6 #1 SMP Thu May 17 23:13:08 UTC 2012 i686 unknown
===================
#./lsmod
OUTPUT:
===================
Module Size Used by Not tainted
can_j1939 32312 0
sja1000_isa 3013 0
sja1000 5344 1 sja1000_isa
can_dev 5703 1 sja1000
can_raw 4939 0
can 20230 2 can_j1939,can_raw
===================
#./dmesg | grep can
OUTPUT:
===================
[ 1.289519] rtc_cmos 00:05: RTC can wake from S4
[ 1.455446] md: Scanned 0 and added 0 devices.
[ 4.561925] can: controller area network core (rev 20090105 abi 8)
[ 4.563889] can: raw protocol (rev 20090105)
[ 4.601750] sja1000_isa sja1000_isa.0: can0: bit-timing not yet defined
[ 4.606770] sja1000_isa sja1000_isa.1: can1: bit-timing not yet defined
[ 598.521246] can: SAE J1939
===================
#./ip addr show
OUTPUT:
===================
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast
state DOWN qlen 1000
link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff
inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0
3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN
link/sit 0.0.0.0 brd 0.0.0.0
4: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10
link/can
can-j1939 0x20 scope link
5: can1: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10
link/can
can-j1939 0x40 scope link
===================
#./ifconfig
OUTPUT:
===================
can0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:10 Base address:0x600
can1 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:10 Base address:0x680
===================
Thanks in advance.
Abdul.
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: Strange error with jspy utility 2012-05-18 21:50 Strange error with jspy utility Abdul Khan @ 2012-05-19 5:15 ` Kurt Van Dijck 2012-05-24 19:52 ` Abdul Khan 2012-05-29 7:37 ` Strange error with jspy utility: solved? Kurt Van Dijck 2012-05-19 9:06 ` Strange error with jspy utility Oliver Hartkopp 1 sibling, 2 replies; 12+ messages in thread From: Kurt Van Dijck @ 2012-05-19 5:15 UTC (permalink / raw) To: Abdul Khan; +Cc: linux-can Hi Abdul, Thanks for your intrest in can-j1939. It appears you got quite far yet. From your story, I assume you connected can0 & can1 together? > I am facing strange error with jspy utility provided with j1939-utils I cannot look on your CAN bus. I'd need a raw CAN dump too if I want to really debug this remotely. > #./jsr can0:20,feda | ./jsr can1:40,feda Here, you connect 2 jsr instances together via a pipe also. I think you created a loop here. I'm not trying to find out how this would react. 'jsr' is meant as program to send stdin to j1939 & receive j1939 to stdout. It's not well documented since it's a kind of test program ... :-) I think what you wanted to do is this: $ ./jsr can0:20,feda & $ echo "hello" | ./jsr can1:40,feda Then, you will see the seond instance of jsr terminating quite soon, after having sent 1 packet. The first instance of jsr will receive that (via CAN) and print on stdout. $ jspy should then show 1 packet. Kind regards, Kurt > > Thanks in advance. > Abdul. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-19 5:15 ` Kurt Van Dijck @ 2012-05-24 19:52 ` Abdul Khan 2012-05-29 7:37 ` Strange error with jspy utility: solved? Kurt Van Dijck 1 sibling, 0 replies; 12+ messages in thread From: Abdul Khan @ 2012-05-24 19:52 UTC (permalink / raw) To: linux-can Hi Kurt Thanks for your response, I was away for few days. Please see below my findings in-line. > From your story, I assume you connected can0 & can1 together? Yes, can0 and can1 are connected together. can0 hi <--> can1 hi can0 lo <--> can1 lo can0 grd <--> can1 grd > I cannot look on your CAN bus. I'd need a raw CAN dump too > if I want to really debug this remotely. ./cansend can0 123#1122334455667788 ./candump can1 Output: ===== can1 123 [8] 11 22 33 44 55 66 77 88 > $ ./jsr can0:20,feda & > $ echo "hello" | ./jsr can1:40,feda I did try with this. > Then, you will see the seond instance of jsr terminating > quite soon, after having sent 1 packet. Yes, second instance of jsr terminating, after having sent 1 packet. > The first instance of jsr will receive that (via CAN) and print > on stdout. > > $ jspy > should then show 1 packet. > ./jspy -P -v Output: ===== can0:40, 0feda - !6 [6] 68656c6c 6f0a - !6 [6] 68656c6c 6f0a Thanks Abdul. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility: solved? 2012-05-19 5:15 ` Kurt Van Dijck 2012-05-24 19:52 ` Abdul Khan @ 2012-05-29 7:37 ` Kurt Van Dijck 1 sibling, 0 replies; 12+ messages in thread From: Kurt Van Dijck @ 2012-05-29 7:37 UTC (permalink / raw) To: Abdul Khan, linux-can > Hi Kurt > > Thanks for your response, I was away for few days. Please see below my > findings in-line. > > > From your story, I assume you connected can0 & can1 together? > > Yes, can0 and can1 are connected together. > can0 hi <--> can1 hi > can0 lo <--> can1 lo > can0 grd <--> can1 grd Very well. > > > I cannot look on your CAN bus. I'd need a raw CAN dump too > > if I want to really debug this remotely. > > ./cansend can0 123#1122334455667788 > > ./candump can1 > > Output: > ===== > can1 123 [8] 11 22 33 44 55 66 77 88 You proved the CAN bus is working with 11bit identifiers. I meant to do candump in parallel with the j1939 tests. > > > $ ./jsr can0:20,feda & > > $ echo "hello" | ./jsr can1:40,feda > > I did try with this. > > > Then, you will see the seond instance of jsr terminating > > quite soon, after having sent 1 packet. > > Yes, second instance of jsr terminating, after having sent 1 packet. > > > The first instance of jsr will receive that (via CAN) and print > > on stdout. > > > > $ jspy > > should then show 1 packet. > > > > ./jspy -P -v > > Output: > ===== > can0:40, 0feda - !6 [6] 68656c6c 6f0a > - !6 [6] 68656c6c 6f0a I believe the output of $ candump can0 would have been: can0 18feda40 [6] 68 65 6c 6c 6f 0a I think your system is working fine. The problem you faced is that 'jsr's use is not very wel documented :-) Regards, Kurt > > Thanks > Abdul. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-18 21:50 Strange error with jspy utility Abdul Khan 2012-05-19 5:15 ` Kurt Van Dijck @ 2012-05-19 9:06 ` Oliver Hartkopp 2012-05-24 20:30 ` Abdul Khan 1 sibling, 1 reply; 12+ messages in thread From: Oliver Hartkopp @ 2012-05-19 9:06 UTC (permalink / raw) To: Abdul Khan; +Cc: linux-can Hi Abdul, On 18.05.2012 23:50, Abdul Khan wrote: > I am facing strange error with jspy utility provided with j1939-utils > package. I am using can-j1939-utils, iproute2 and > can-j1939-linux-3.3.0-rc6 provided by Kurt. Are you sure that at least your CAN interfaces are running properly? > #./dmesg | grep can > > OUTPUT: > =================== > [ 1.289519] rtc_cmos 00:05: RTC can wake from S4 > [ 1.455446] md: Scanned 0 and added 0 devices. > [ 4.561925] can: controller area network core (rev 20090105 abi 8) > [ 4.563889] can: raw protocol (rev 20090105) > [ 4.601750] sja1000_isa sja1000_isa.0: can0: bit-timing not yet defined > [ 4.606770] sja1000_isa sja1000_isa.1: can1: bit-timing not yet defined > [ 598.521246] can: SAE J1939 > =================== The sja1000 interfaces usually tell you when the are set in dmesg. This is definitely missing in this grep'ed output. E.g. # ip -details link show Should give something like this: 8: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10 link/can can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 500000 sample-point 0.875 tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 9: can1: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10 link/can can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 500000 sample-point 0.812 tq 125 prop-seg 6 phase-seg1 6 phase-seg2 3 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 Regards, Oliver ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-19 9:06 ` Strange error with jspy utility Oliver Hartkopp @ 2012-05-24 20:30 ` Abdul Khan 2012-05-25 2:16 ` Oliver Hartkopp 0 siblings, 1 reply; 12+ messages in thread From: Abdul Khan @ 2012-05-24 20:30 UTC (permalink / raw) To: Oliver Hartkopp; +Cc: linux-can Hi Oliver, Please see my findings in-line. > Are you sure that at least your CAN interfaces are running properly? I can able to send packet from can0 to can1 and vice versa. #./cansend can0 123#1122334455667788 #./candump can1 Output: ===== can1 123 [8] 11 22 33 44 55 66 77 88 > The sja1000 interfaces usually tell you when the are set in dmesg. > This is definitely missing in this grep'ed output. I am getting following dmesg. [ 4.629951] can: controller area network core (rev 20090105 abi 8) [ 4.630072] NET: Registered protocol family 29 [ 4.631864] can: raw protocol (rev 20090105) [ 4.642162] CAN device driver interface [ 4.644036] sja1000 CAN netdevice driver [ 4.646370] sja1000_isa: platform device 0: port=0x600, mem=0x0, irq=10 [ 4.647973] sja1000_isa: platform device 1: port=0x680, mem=0x0, irq=10 [ 4.648073] sja1000_isa sja1000_isa.0: probing idx=0: port=0x600, mem=0x0, irq=10 [ 4.651991] sja1000_isa sja1000_isa.0: sja1000_isa device registered (reg_base=0x00000600, irq=10) [ 4.652063] sja1000_isa sja1000_isa.1: probing idx=1: port=0x680, mem=0x0, irq=10 [ 4.662256] sja1000_isa sja1000_isa.1: sja1000_isa device registered (reg_base=0x00000680, irq=10) [ 4.665633] Legacy sja1000_isa driver for max. 8 devices registered [ 4.672009] sja1000_isa sja1000_isa.0: can0: bit-timing not yet defined [ 4.673968] sja1000_isa sja1000_isa.1: can1: bit-timing not yet defined on loading can-j1939.ko module # modprobe can-j1939 dmesg output: ========== [ 76.791667] can: SAE J1939 on setting bit-rate using below command. #./ip link set can0 type can bitrate 125000 #./ip link set can1 type can bitrate 125000 dmesg output: ========== [ 168.014338] sja1000_isa sja1000_isa.0: can0: setting BTR0=0x03 BTR1=0x1c [ 173.198542] sja1000_isa sja1000_isa.1: can1: setting BTR0=0x03 BTR1=0x1c on setting link using below command #./ip link set can0 j1939 on #./ip link set can1 j1939 on dmesg output: ========== [ 187.406173] j1939-4: register [ 190.325970] j1939-5: register > E.g > > # ip -details link show > # ip -details link show ( Before: ifconfig can0/1 up ) Output: ====================== 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN link/sit 0.0.0.0 brd 0.0.0.0 4: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 link/can can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 j1939 on 5: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 link/can can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 j1939 on ====================== # ip -details link show ( After: ifconfig can0/1 up ) Output: ====================== 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN link/sit 0.0.0.0 brd 0.0.0.0 4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 link/can can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 j1939 on 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 link/can can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 j1939 on ====================== #./ifconfig Output: ====================== can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 UP RUNNING NOARP MTU:16 Metric:1 RX packets:1 errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:10 RX bytes:8 (8.0 B) TX bytes:8 (8.0 B) Interrupt:10 Base address:0x600 can1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 UP RUNNING NOARP MTU:16 Metric:1 RX packets:1 errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:10 RX bytes:8 (8.0 B) TX bytes:8 (8.0 B) Interrupt:10 Base address:0x680 ====================== # ./ip address show Output: ====================== 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN link/sit 0.0.0.0 brd 0.0.0.0 4: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 link/can can-j1939 0x20 scope link 5: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 link/can can-j1939 0x40 scope link ====================== Observation: ========= After ifconfig up command, it's state changes from "STOPPED" to "ERROR-ACTIVE" can state STOPPED ----> can state ERROR-ACTIVE I am not sure, its a normal behaviour or there is some kind of error. Thanks Abdul. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-24 20:30 ` Abdul Khan @ 2012-05-25 2:16 ` Oliver Hartkopp 2012-05-25 22:46 ` Abdul Khan 0 siblings, 1 reply; 12+ messages in thread From: Oliver Hartkopp @ 2012-05-25 2:16 UTC (permalink / raw) To: Abdul Khan; +Cc: linux-can Hi Abdul, i've already seen from your answer to Kurt that you have also tested the CAN connection with 'cansend' and 'candump' - which was a really good idea :-) The CAN state going from "can state STOPPED ----> can state ERROR-ACTIVE" is a correct behaviour. In your shown examples you only send ONE single frame. It can be that ONLY ONE single frame can pass the bus and then e.g. the interrupt line is not processed correctly which does not re-arm the interrupt. Can you please confirm that you can send MORE that ONE CAN frame from can0 to can1 and that you also can send more than one frame from can1 to can0? Regards, Oliver On 24.05.2012 22:30, Abdul Khan wrote: > Hi Oliver, > > Please see my findings in-line. > >> Are you sure that at least your CAN interfaces are running properly? > > I can able to send packet from can0 to can1 and vice versa. > > #./cansend can0 123#1122334455667788 > > #./candump can1 > > Output: > ===== > can1 123 [8] 11 22 33 44 55 66 77 88 > >> The sja1000 interfaces usually tell you when the are set in dmesg. >> This is definitely missing in this grep'ed output. > > I am getting following dmesg. > [ 4.629951] can: controller area network core (rev 20090105 abi 8) > [ 4.630072] NET: Registered protocol family 29 > [ 4.631864] can: raw protocol (rev 20090105) > [ 4.642162] CAN device driver interface > [ 4.644036] sja1000 CAN netdevice driver > [ 4.646370] sja1000_isa: platform device 0: port=0x600, mem=0x0, irq=10 > [ 4.647973] sja1000_isa: platform device 1: port=0x680, mem=0x0, irq=10 > [ 4.648073] sja1000_isa sja1000_isa.0: probing idx=0: port=0x600, > mem=0x0, irq=10 > [ 4.651991] sja1000_isa sja1000_isa.0: sja1000_isa device > registered (reg_base=0x00000600, irq=10) > [ 4.652063] sja1000_isa sja1000_isa.1: probing idx=1: port=0x680, > mem=0x0, irq=10 > [ 4.662256] sja1000_isa sja1000_isa.1: sja1000_isa device > registered (reg_base=0x00000680, irq=10) > [ 4.665633] Legacy sja1000_isa driver for max. 8 devices registered > [ 4.672009] sja1000_isa sja1000_isa.0: can0: bit-timing not yet defined > [ 4.673968] sja1000_isa sja1000_isa.1: can1: bit-timing not yet defined > > on loading can-j1939.ko module > # modprobe can-j1939 > > dmesg output: > ========== > [ 76.791667] can: SAE J1939 > > on setting bit-rate using below command. > #./ip link set can0 type can bitrate 125000 > #./ip link set can1 type can bitrate 125000 > > dmesg output: > ========== > [ 168.014338] sja1000_isa sja1000_isa.0: can0: setting BTR0=0x03 BTR1=0x1c > [ 173.198542] sja1000_isa sja1000_isa.1: can1: setting BTR0=0x03 BTR1=0x1c > > > on setting link using below command > #./ip link set can0 j1939 on > #./ip link set can1 j1939 on > > dmesg output: > ========== > [ 187.406173] j1939-4: register > [ 190.325970] j1939-5: register > >> E.g >> >> # ip -details link show >> > > # ip -details link show ( Before: ifconfig can0/1 up ) > > Output: > ====================== > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast > state DOWN qlen 1000 > link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff > 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN > link/sit 0.0.0.0 brd 0.0.0.0 > 4: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 > link/can > can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > j1939 on > 5: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 > link/can > can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > j1939 on > ====================== > > > # ip -details link show ( After: ifconfig can0/1 up ) > > Output: > ====================== > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast > state DOWN qlen 1000 > link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff > 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN > link/sit 0.0.0.0 brd 0.0.0.0 > 4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > j1939 on > 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > j1939 on > ====================== > > > #./ifconfig > > Output: > ====================== > can0 Link encap:UNSPEC HWaddr > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > UP RUNNING NOARP MTU:16 Metric:1 > RX packets:1 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:10 > RX bytes:8 (8.0 B) TX bytes:8 (8.0 B) > Interrupt:10 Base address:0x600 > > can1 Link encap:UNSPEC HWaddr > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > UP RUNNING NOARP MTU:16 Metric:1 > RX packets:1 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:10 > RX bytes:8 (8.0 B) TX bytes:8 (8.0 B) > Interrupt:10 Base address:0x680 > ====================== > > > # ./ip address show > > Output: > ====================== > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > inet 127.0.0.1/8 scope host lo > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast > state DOWN qlen 1000 > link/ether 00:01:05:0b:58:7e brd ff:ff:ff:ff:ff:ff > inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 > 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN > link/sit 0.0.0.0 brd 0.0.0.0 > 4: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 > link/can > can-j1939 0x20 scope link > 5: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN qlen 10 > link/can > can-j1939 0x40 scope link > ====================== > > Observation: > ========= > After ifconfig up command, it's state changes from "STOPPED" to "ERROR-ACTIVE" > > can state STOPPED ----> can state ERROR-ACTIVE > > I am not sure, its a normal behaviour or there is some kind of error. > > Thanks > Abdul. > -- > To unsubscribe from this list: send the line "unsubscribe linux-can" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-25 2:16 ` Oliver Hartkopp @ 2012-05-25 22:46 ` Abdul Khan 2012-05-26 6:21 ` Oliver Hartkopp 2012-05-26 18:29 ` Strange error with jspy utility Kurt Van Dijck 0 siblings, 2 replies; 12+ messages in thread From: Abdul Khan @ 2012-05-25 22:46 UTC (permalink / raw) To: Oliver Hartkopp; +Cc: linux-can Hi Oliver, Please see my findings in-line with your questions. On Thu, May 24, 2012 at 10:16 PM, Oliver Hartkopp <socketcan@hartkopp.net> wrote: > Hi Abdul, > > i've already seen from your answer to Kurt that you have also tested the CAN > connection with 'cansend' and 'candump' - which was a really good idea :-) > > The CAN state going from "can state STOPPED ----> can state ERROR-ACTIVE" is a > correct behaviour. > thanks for the info. > In your shown examples you only send ONE single frame. > I sent multiple frames and there were three cases. > It can be that ONLY ONE single frame can pass the bus and then e.g. the > interrupt line is not processed correctly which does not re-arm the interrupt. > CASE-1 ( Loop back: can0-can1 and vice versa ) ==================================== #./cansend can0 123#1122334455667788 (multiple time in a loop using script) #./candump -e any,0:0,#FFFFFFFF Output: ===== can0 123 [8] 11 22 33 44 55 66 77 88 can1 123 [8] 11 22 33 44 55 66 77 88 can0 123 [8] 11 22 33 44 55 66 77 88 can1 123 [8] 11 22 33 44 55 66 77 88 ..................................................... ..................................................... . Similarly for can1, there was no problem. Result: ===== All CAN frames passed through the bus and there was no problem with interrupt line. CASE-2 ( Loop back: can0-can1 and vice versa ) ==================================== #./jsr can0:20,feda | ./jsr can1:40,feda #./candump -e any,0:0,#FFFFFFFF Output: ===== can0 18FEDA40 [1] 0A can1 18FEDA40 [1] 0A ................................. ................................ #./jspy -P -v Output: ===== can0:40,0feda - !6 [1] 0a can1:40,0feda - !6 [1] 0a ................................. ................................ #./ip -d -s link show Output: ===== 4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 link/can can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx 128) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 re-started bus-errors arbit-lost error-warn error-pass bus-off 0 0 0 0 0 0 RX: bytes packets errors dropped overrun mcast 55731 55731 0 0 0 0 TX: bytes packets errors dropped carrier collsns 1 1 0 0 0 0 j1939 on 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 link/can can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx 128) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 re-started bus-errors arbit-lost error-warn error-pass bus-off 0 0 0 0 0 0 RX: bytes packets errors dropped overrun mcast 1 1 0 0 0 0 TX: bytes packets errors dropped carrier collsns 55731 55731 0 0 0 0 j1939 on Result: ===== Only one j1939 frame passed through the bus and there was no problem with interrupt line. CASE-3 ( Connected j1939 simulator to can1 ) ================================== Start j1939 simulator connected with can1 #./candump -e any,0:0,#FFFFFFFF Output: ===== can1 20000004 [8] 00 04 00 00 00 00 00 60 ERRORFRAME controller-problem{rx-error-warning} error-counter-tx-rx{{0}{96}} can1 20000004 [8] 00 10 00 00 00 00 00 80 ERRORFRAME controller-problem{rx-error-passive} error-counter-tx-rx{{0}{128}} #./ip -d -s link show Output: ===== 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 link/can can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx 128) restart-ms 0 bitrate 125000 sample-point 0.875 tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 clock 8000000 re-started bus-errors arbit-lost error-warn error-pass bus-off 0 0 0 1 1 0 RX: bytes packets errors dropped overrun mcast 16 2 0 0 0 0 TX: bytes packets errors dropped carrier collsns 0 0 0 0 0 0 j1939 on # dmesg Output: ===== [ 4.616007] can: controller area network core (rev 20090105 abi 8) [ 4.616121] NET: Registered protocol family 29 [ 4.618211] can: raw protocol (rev 20090105) [ 4.628480] CAN device driver interface [ 4.630351] sja1000 CAN netdevice driver [ 4.633162] sja1000_isa: platform device 0: port=0x600, mem=0x0, irq=10 [ 4.634698] sja1000_isa: platform device 1: port=0x680, mem=0x0, irq=10 [ 4.634744] sja1000_isa sja1000_isa.0: probing idx=0: port=0x600, mem=0x0, irq=10 [ 4.638424] sja1000_isa sja1000_isa.0: sja1000_isa device registered (reg_base=0x00000600, irq=10) [ 4.638458] sja1000_isa sja1000_isa.1: probing idx=1: port=0x680, mem=0x0, irq=10 [ 4.648482] sja1000_isa sja1000_isa.1: sja1000_isa device registered (reg_base=0x00000680, irq=10) [ 4.651477] Legacy sja1000_isa driver for max. 8 devices registered [ 4.665513] can: SAE J1939 [ 96.910811] sja1000_isa sja1000_isa.0: can0: setting BTR0=0x03 BTR1=0x9c [ 102.318645] sja1000_isa sja1000_isa.1: can1: setting BTR0=0x03 BTR1=0x9c [ 117.660969] j1939-4: register [ 120.117923] j1939-5: register I was getting this error, once I tried to send j1939 frame from j1939 simulator to can1 [ 254.018168] sja1000_isa sja1000_isa.1: can1: error warning interrupt [ 254.021242] sja1000_isa sja1000_isa.1: can1: error passive interrupt Result: ===== No j1939 frame passed through the bus and there was problem with interrupt line. > Can you please confirm that you can send MORE that ONE CAN frame from can0 to > can1 and that you also can send more than one frame from can1 to can0? > Yes for CAN frames. However, No for j1939 frames I am using the same sja1000_isa driver provided in the source code provided by Kurt. # modprobe sja1000_isa port=0x600,0x680 irq=10,10 I don't know, Why sja1000_isa driver is giving "error warning interrupt" and "error passive interrupt" messages. As simulator supposed to be sent properly formatted j1939 frame to can1. What could be possible cause for this type of behaviour ? > Regards, > Oliver Thanks Abdul. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-25 22:46 ` Abdul Khan @ 2012-05-26 6:21 ` Oliver Hartkopp 2012-05-26 6:57 ` Oliver Hartkopp 2012-05-26 18:29 ` Strange error with jspy utility Kurt Van Dijck 1 sibling, 1 reply; 12+ messages in thread From: Oliver Hartkopp @ 2012-05-26 6:21 UTC (permalink / raw) To: Abdul Khan; +Cc: linux-can Hm - thanks for the good testing but looks like you still have some kind of CAN problem, e.g. - slightly different bitrate - wrong/missing termination Please try without triple-sampling and check the two points above. Regards, Oliver ps. you might also use 'cangen' to generate CAN traffic On 26.05.2012 00:46, Abdul Khan wrote: > Hi Oliver, > > Please see my findings in-line with your questions. > > On Thu, May 24, 2012 at 10:16 PM, Oliver Hartkopp > <socketcan@hartkopp.net> wrote: >> Hi Abdul, >> >> i've already seen from your answer to Kurt that you have also tested the CAN >> connection with 'cansend' and 'candump' - which was a really good idea :-) >> >> The CAN state going from "can state STOPPED ----> can state ERROR-ACTIVE" is a >> correct behaviour. >> > > thanks for the info. > >> In your shown examples you only send ONE single frame. >> > > I sent multiple frames and there were three cases. > >> It can be that ONLY ONE single frame can pass the bus and then e.g. the >> interrupt line is not processed correctly which does not re-arm the interrupt. >> > > > CASE-1 ( Loop back: can0-can1 and vice versa ) > ==================================== > > #./cansend can0 123#1122334455667788 (multiple time in a loop using script) > > #./candump -e any,0:0,#FFFFFFFF > > Output: > ===== > can0 123 [8] 11 22 33 44 55 66 77 88 > can1 123 [8] 11 22 33 44 55 66 77 88 > can0 123 [8] 11 22 33 44 55 66 77 88 > can1 123 [8] 11 22 33 44 55 66 77 88 > ..................................................... > ..................................................... > . > Similarly for can1, there was no problem. > > Result: > ===== > All CAN frames passed through the bus and there was no problem with > interrupt line. > > > CASE-2 ( Loop back: can0-can1 and vice versa ) > ==================================== > > #./jsr can0:20,feda | ./jsr can1:40,feda > > #./candump -e any,0:0,#FFFFFFFF > > Output: > ===== > can0 18FEDA40 [1] 0A > can1 18FEDA40 [1] 0A > ................................. > ................................ > > #./jspy -P -v > > Output: > ===== > can0:40,0feda - !6 [1] 0a > can1:40,0feda - !6 [1] 0a > ................................. > ................................ > > #./ip -d -s link show > > Output: > ===== > 4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx > 128) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > re-started bus-errors arbit-lost error-warn error-pass bus-off > 0 0 0 0 0 0 > RX: bytes packets errors dropped overrun mcast > 55731 55731 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 1 1 0 0 0 0 > j1939 on > > 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx > 128) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > re-started bus-errors arbit-lost error-warn error-pass bus-off > 0 0 0 0 0 0 > RX: bytes packets errors dropped overrun mcast > 1 1 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 55731 55731 0 0 0 0 > j1939 on > > > Result: > ===== > Only one j1939 frame passed through the bus and there was no problem > with interrupt line. > > > > CASE-3 ( Connected j1939 simulator to can1 ) > ================================== > Start j1939 simulator connected with can1 > > #./candump -e any,0:0,#FFFFFFFF > > Output: > ===== > can1 20000004 [8] 00 04 00 00 00 00 00 60 ERRORFRAME > controller-problem{rx-error-warning} > error-counter-tx-rx{{0}{96}} > can1 20000004 [8] 00 10 00 00 00 00 00 80 ERRORFRAME > controller-problem{rx-error-passive} > error-counter-tx-rx{{0}{128}} > > > #./ip -d -s link show > > Output: > ===== > 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can <TRIPLE-SAMPLING> state ERROR-PASSIVE (berr-counter tx 0 rx > 128) restart-ms 0 > bitrate 125000 sample-point 0.875 > tq 500 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > clock 8000000 > re-started bus-errors arbit-lost error-warn error-pass bus-off > 0 0 0 1 1 0 > RX: bytes packets errors dropped overrun mcast > 16 2 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 0 0 0 0 0 0 > j1939 on > > > # dmesg > > Output: > ===== > [ 4.616007] can: controller area network core (rev 20090105 abi 8) > [ 4.616121] NET: Registered protocol family 29 > [ 4.618211] can: raw protocol (rev 20090105) > [ 4.628480] CAN device driver interface > [ 4.630351] sja1000 CAN netdevice driver > [ 4.633162] sja1000_isa: platform device 0: port=0x600, mem=0x0, irq=10 > [ 4.634698] sja1000_isa: platform device 1: port=0x680, mem=0x0, irq=10 > [ 4.634744] sja1000_isa sja1000_isa.0: probing idx=0: port=0x600, > mem=0x0, irq=10 > [ 4.638424] sja1000_isa sja1000_isa.0: sja1000_isa device > registered (reg_base=0x00000600, irq=10) > [ 4.638458] sja1000_isa sja1000_isa.1: probing idx=1: port=0x680, > mem=0x0, irq=10 > [ 4.648482] sja1000_isa sja1000_isa.1: sja1000_isa device > registered (reg_base=0x00000680, irq=10) > [ 4.651477] Legacy sja1000_isa driver for max. 8 devices registered > [ 4.665513] can: SAE J1939 > [ 96.910811] sja1000_isa sja1000_isa.0: can0: setting BTR0=0x03 BTR1=0x9c > [ 102.318645] sja1000_isa sja1000_isa.1: can1: setting BTR0=0x03 BTR1=0x9c > [ 117.660969] j1939-4: register > [ 120.117923] j1939-5: register > > > I was getting this error, once I tried to send j1939 frame from j1939 > simulator to can1 > > [ 254.018168] sja1000_isa sja1000_isa.1: can1: error warning interrupt > [ 254.021242] sja1000_isa sja1000_isa.1: can1: error passive interrupt > > > Result: > ===== > No j1939 frame passed through the bus and there was problem with interrupt line. > > >> Can you please confirm that you can send MORE that ONE CAN frame from can0 to >> can1 and that you also can send more than one frame from can1 to can0? >> > > Yes for CAN frames. However, No for j1939 frames > > I am using the same sja1000_isa driver provided in the source code > provided by Kurt. > > # modprobe sja1000_isa port=0x600,0x680 irq=10,10 > > I don't know, Why sja1000_isa driver is giving "error warning > interrupt" and "error passive interrupt" messages. As simulator > supposed to be sent properly formatted j1939 frame to can1. > > What could be possible cause for this type of behaviour ? > >> Regards, >> Oliver > > Thanks > Abdul. > -- > To unsubscribe from this list: send the line "unsubscribe linux-can" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-26 6:21 ` Oliver Hartkopp @ 2012-05-26 6:57 ` Oliver Hartkopp 2012-05-29 7:40 ` Strange error with jspy utility: Bus problems Kurt Van Dijck 0 siblings, 1 reply; 12+ messages in thread From: Oliver Hartkopp @ 2012-05-26 6:57 UTC (permalink / raw) To: Abdul Khan; +Cc: linux-can >> >> I don't know, Why sja1000_isa driver is giving "error warning >> interrupt" and "error passive interrupt" messages. As simulator >> supposed to be sent properly formatted j1939 frame to can1. >> >> What could be possible cause for this type of behaviour ? >> Is it possible, that when your j1939 simulator tries to answer, the problems begin? Regards, Oliver ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility: Bus problems 2012-05-26 6:57 ` Oliver Hartkopp @ 2012-05-29 7:40 ` Kurt Van Dijck 0 siblings, 0 replies; 12+ messages in thread From: Kurt Van Dijck @ 2012-05-29 7:40 UTC (permalink / raw) To: Oliver Hartkopp; +Cc: Abdul Khan, linux-can On Sat, May 26, 2012 at 08:57:07AM +0200, Oliver Hartkopp wrote: > > >> > >> I don't know, Why sja1000_isa driver is giving "error warning > >> interrupt" and "error passive interrupt" messages. As simulator > >> supposed to be sent properly formatted j1939 frame to can1. > >> > >> What could be possible cause for this type of behaviour ? > >> I didn't focused on this at start, and lost the issue a bit. J1939 is supposed (by norm) to run 250kbit. You're operating j1939 on 125kbit, which is (logically) possible, but beware interfacing with others! Are you sure your simulator is operating 125kbit? Regards, Kurt ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Strange error with jspy utility 2012-05-25 22:46 ` Abdul Khan 2012-05-26 6:21 ` Oliver Hartkopp @ 2012-05-26 18:29 ` Kurt Van Dijck 1 sibling, 0 replies; 12+ messages in thread From: Kurt Van Dijck @ 2012-05-26 18:29 UTC (permalink / raw) To: Abdul Khan; +Cc: Oliver Hartkopp, linux-can Oliver & Abdul, > > i've already seen from your answer to Kurt that you have also tested the CAN > > connection with 'cansend' and 'candump' - which was a really good idea :-) I was closely looking this thread, but yet I conclude I must have missed some emails. Probably our mail server is misbehaving. I will check on some cache for your answers and reply then. Kind regards, Kurt ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2012-05-29 7:40 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-05-18 21:50 Strange error with jspy utility Abdul Khan 2012-05-19 5:15 ` Kurt Van Dijck 2012-05-24 19:52 ` Abdul Khan 2012-05-29 7:37 ` Strange error with jspy utility: solved? Kurt Van Dijck 2012-05-19 9:06 ` Strange error with jspy utility Oliver Hartkopp 2012-05-24 20:30 ` Abdul Khan 2012-05-25 2:16 ` Oliver Hartkopp 2012-05-25 22:46 ` Abdul Khan 2012-05-26 6:21 ` Oliver Hartkopp 2012-05-26 6:57 ` Oliver Hartkopp 2012-05-29 7:40 ` Strange error with jspy utility: Bus problems Kurt Van Dijck 2012-05-26 18:29 ` Strange error with jspy utility Kurt Van Dijck
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