Date: Fri, 25 Sep 1998 21:50:01 +0200 (CEST) From: Holm Tiffe <freebsd@magnet.geophysik.tu-freiberg.de> To: freebsd-scsi@FreeBSD.ORG Cc: freebsd-smp@FreeBSD.ORG Subject: AHA 2742T+CAM+SMP problems 2nd. try #2 Message-ID: <199809251950.VAA02617@magnet.geophysik.tu-freiberg.de>
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More from my SMP problem:
Today evening I have upgraded my src/sys to cvs-cur.4676
(cam_xpt.c version 1.13)
and now I get the following with the new SMP kernel:
SMP: AP CPU #1 Launched!
........................... here is a long pause with a stady lightening
SCSI LED
(probe9:ahc0:1:2:0): Sending SDTR! (what this means Scsi Device Target Reset ?)
(probe9:ahc0:1:2:0): SCB 0x9 timed out in message in phase, SCSISIGI == 0xb6
SEQADDR == 0x15b
SSTAT1 == 0x13
(probe9:ahc0:1:2:0): BDR message in message buffer
Fatal trap 12: page fault while in kernel mode
mp_lock = 01000002; cpuid = 1, lapicid = 01000000
fault virtual address = 0xb8
funkt code = supervisor read, page not present
instruction pointer = 0x8:0xf0106a78
stack pointer = 0x10:0xff804cc4
frame pointer = 0x10:0xff805e04
code segment = base 0x0,limit 0xfffff, type 0x16
= DPL0; pres1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL=0
current process = Idle
interrupt mask = cam <- SMP: XXX
kernel type 12 trap, code=0
stopped at _xpt_set_transfer_settings+0xd8: -> testb $0x20,0xb8(%esi)
trace:
_xpt_set_transfer_settings(ff804e78,1) at _xpt_set_transfer_settings+0xd8
_xpt_async(200,f05acc40,ff804e78,ff804e78,f05acc40,1,f07b8000) at _xpt_async+0xb0
_ahc_set_syncrate(f07b8000,ff804f38,f05acc40,0,0,0,1,f07b8000,ff804f38,f05acc40,0,1) at ahc_set_syncrate+0x1de
_ahc_handle_devreset()
_ahc_handle_scsiint()
_ahc_intr()
.... this is shorted, pencil broken :-)
this seams to be a NULL pointer reference in cam_xpt.c around line
5302 , maybe device->quirk is not jet initialized ?
Holm
PS:
Changing the AHA 2742T to another (rev C) and changing the P5/90 CPU
to a P5/100 has nothing changed.
The SCSI bus hangs after the SMP: AP CPU #1 Launched line...
--
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* Holm Tiffe holm@geophysik.tu-freiberg.de *
* Freiberger Strasse 24 *
* 09600 Kleinschirma, Germany Microsoft is not the Answer - *
* Tel.: 49 3731 74233 Microsoft is the Question, *
* UUCP: 49 3731 73719 unicorn!holm and the Answer is no ! *
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