Date: Thu, 7 Mar 1996 02:08:04 +0200 (EET) From: Heikki Suonsivu <hsu@clinet.fi> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/1066: Arnet driver: panic when ifconfig PPP -> HDLC Message-ID: <199603070008.CAA28412@zetor.clinet.fi> Resent-Message-ID: <199603070010.QAA12511@freefall.freebsd.org>
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>Number: 1066
>Category: kern
>Synopsis: Arnet driver: panic when ifconfig PPP -> HDLC
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Mar 6 16:10:01 PST 1996
>Last-Modified:
>Originator: Heikki Suonsivu
>Organization:
Clinet, Espoo, Finland
>Release: FreeBSD 2.2-CURRENT i386
>Environment:
FreeBSD 2.2-CURRENT
#0: Sun Mar 3 12:00:09 EET 1996
hsu@news.clinet.fi:/usr/current/src/sys/compile/CLINETARNET
CPU: i486 SX (486-class CPU)
Origin = "GenuineIntel" Id = 0x423 Stepping=3
Features=0x2<VME>
real memory = 16777216 (16384K bytes)
avail memory = 14467072 (14128K bytes)
Probing for devices on the ISA bus:
vt0 at 0x60-0x6f irq 1 on motherboard
vt0: cl-gd5428, 80/132 col, mono, 8 scr, mf2-kbd, [R3.20-b24]
ed0 at 0x280-0x29f irq 5 on isa
ed0: address 00:4f:56:00:7c:6b, type NE2000 (16 bit)
ed3 at 0x240-0x25f irq 9 on isa
ed3: address 00:4f:56:00:4b:76, type NE2000 (16 bit)
ed4 at 0x340-0x35f irq 15 on isa
ed4: address 00:4f:56:00:ad:e0, type NE2000 (16 bit)
ed5 not found at 0x220
sio0 not found at 0x3f8
sio0 not found at 0x3f8
sio1 not found at 0x2f8
sio1 not found at 0x2f8
sio2 not found at 0x2a0
sio2 not found at 0x2a0
sio3 not found at 0x2a8
sio3 not found at 0x2a8
sio4 not found at 0x2b0
sio4 not found at 0x2b0
sio5 not found at 0x2b8
sio5 not found at 0x2b8
cy0 not found
cy1 not found
bt0 not found at 0x330
aha0 not found at 0x330
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <QUANTUM LPS420A>
wd0: 402MB (824160 sectors), 1010 cyls, 16 heads, 51 S/T, 512 B/S
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 765
fd0: 1.44MB 3.5in
arc0 at 0x300-0x30f irq 10 maddr 0xd0000 msize 16384 on isa
arc0: 256K RAM, 4 ports, rev 0, EIA-232 or V.35 interface.
ar0: Adapter 0, port 0.
ar1: Adapter 0, port 1.
ar2: Adapter 0, port 2.
ar3: Adapter 0, port 3.
npx0 on motherboard
npx0: 387 emulator
new masks: bio c0004040, tty c0038622, net c0038622
<7>arplookup 193.64.6.28 failed: host is not on local network
<7>arplookup 193.64.6.27 failed: host is not on local network
>Description:
When trying to ioctl ar1 from PPP to Cisco HDLC I got this:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x1e
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf01501b3
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 165 (ifconfig)
interrupt mask =
panic: page fault
syncing disks... done
dumping to dev 1, offset 0
dump 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
The ar0 device works, but when using ar1 at the same time ar1 fails to work
correctly. ar0 is connected to a frame relay box which ignores handshake
signals, while ar1 is connected to a pair of modems, with a Cisco 1005 in
the other end. I haven't yet fully verified that this is arnet driver
problem, as I need to take the setup to lab and try it there. What we see
is loss of packets and this:
Mar 6 07:09:26 kamppi2-gw /kernel: ar1: down
Mar 6 07:09:26 kamppi2-gw /kernel: ar1: up
Mar 6 07:32:26 kamppi2-gw /kernel: ar1: down
Mar 6 07:32:26 kamppi2-gw /kernel: ar1: up
Mar 6 07:47:36 kamppi2-gw /kernel: ar1: down
Mar 6 07:47:36 kamppi2-gw /kernel: ar1: up
Mar 6 08:10:35 kamppi2-gw /kernel: ar1: down
Mar 6 08:10:35 kamppi2-gw /kernel: ar1: up
Mar 6 08:33:35 kamppi2-gw /kernel: ar1: down
Mar 6 08:33:35 kamppi2-gw /kernel: ar1: up
Mar 6 08:48:45 kamppi2-gw /kernel: ar1: down
Mar 6 08:48:45 kamppi2-gw /kernel: ar1: up
Mar 6 09:11:45 kamppi2-gw /kernel: ar1: down
Mar 6 09:11:45 kamppi2-gw /kernel: ar1: up
Mar 6 09:47:35 kamppi2-gw /kernel: ar1: down
Mar 6 09:47:35 kamppi2-gw /kernel: ar1: up
Mar 6 10:15:35 kamppi2-gw /kernel: ar1: down
Mar 6 10:15:35 kamppi2-gw /kernel: ar1: up
Mar 6 10:31:03 kamppi2-gw /kernel: RX1 So this does happen :), stat a4, ST2 0, cda 4190.
Mar 6 10:31:03 kamppi2-gw /kernel: RX1 After reset: ST2 0.
Mar 6 10:44:05 kamppi2-gw /kernel: ar1: down
Mar 6 10:44:05 kamppi2-gw /kernel: ar1: up
Mar 6 10:51:05 kamppi2-gw /kernel: ar1: down
Mar 6 10:51:05 kamppi2-gw /kernel: ar1: up
Mar 6 11:47:24 kamppi2-gw /kernel: ar1: down
Mar 6 11:47:24 kamppi2-gw /kernel: ar1: up
Mar 6 11:54:04 kamppi2-gw /kernel: ar1: down
Mar 6 11:54:04 kamppi2-gw /kernel: ar1: up
Mar 6 12:01:24 kamppi2-gw /kernel: ar1: down
Mar 6 12:01:24 kamppi2-gw /kernel: ar1: up
Mar 6 12:05:45 kamppi2-gw /kernel: RX1 So this does happen :), stat d4, ST2 0, cda 42b2.
Mar 6 12:05:45 kamppi2-gw /kernel: RX1 After reset: ST2 0.
Mar 6 12:23:24 kamppi2-gw /kernel: ar1: down
Mar 6 12:23:24 kamppi2-gw /kernel: ar1: up
Mar 6 12:46:24 kamppi2-gw /kernel: ar1: down
Mar 6 12:46:24 kamppi2-gw /kernel: ar1: up
Mar 6 13:01:33 kamppi2-gw /kernel: ar1: down
Mar 6 13:01:34 kamppi2-gw /kernel: ar1: up
Mar 6 13:22:43 kamppi2-gw /kernel: ar1: down
Mar 6 13:22:43 kamppi2-gw /kernel: ar1: up
Mar 6 14:14:33 kamppi2-gw /kernel: RX1 So this does happen :), stat a4, ST2 0, cda 41ea.
Mar 6 14:14:33 kamppi2-gw /kernel: RX1 After reset: ST2 0.
Mar 6 14:28:23 kamppi2-gw /kernel: ar1: down
Mar 6 14:28:23 kamppi2-gw /kernel: ar1: up
Mar 6 14:51:23 kamppi2-gw /kernel: ar1: down
Mar 6 14:51:23 kamppi2-gw /kernel: ar1: up
Mar 6 15:06:33 kamppi2-gw /kernel: ar1: down
Mar 6 15:06:33 kamppi2-gw /kernel: ar1: up
Mar 6 15:29:33 kamppi2-gw /kernel: ar1: down
Mar 6 15:29:33 kamppi2-gw /kernel: ar1: up
Mar 6 15:52:16 kamppi2-gw /kernel: RX1 So this does happen :), stat 84, ST2 0, cda 4104.
Mar 6 15:52:16 kamppi2-gw /kernel: RX1 After reset: ST2 0.
Mar 6 16:15:52 kamppi2-gw /kernel: ar1: down
Mar 6 16:15:52 kamppi2-gw /kernel: ar1: up
Mar 6 16:31:02 kamppi2-gw /kernel: ar1: down
Mar 6 16:31:02 kamppi2-gw /kernel: ar1: up
Mar 6 16:54:02 kamppi2-gw /kernel: ar1: down
Mar 6 16:54:02 kamppi2-gw /kernel: ar1: up
Mar 6 17:35:02 kamppi2-gw /kernel: ar1: down
Mar 6 17:35:02 kamppi2-gw /kernel: ar1: up
Mar 6 17:58:02 kamppi2-gw /kernel: ar1: down
ftp://ftp.clinet.fi/pub/FreeBSD/crashdumps/kamppi2
Unfortunately there are no symbols in the kernel, the machine was
configured with too small root and I had left them out.
>How-To-Repeat:
I could not repeat the panic, but I didn't want to try it (it is a
production link). The packet loss problem I need to verify to work without
the telco cable between the modems to make sure it is not their problem
(modem error counters do not show anything wrong, and we tried two very
different pairs of modems).
>Fix:
>Audit-Trail:
>Unformatted:
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