Date: Thu, 09 Aug 2012 17:04:00 -0400 From: Mike Tancsa <mike@sentex.net> To: John Baldwin <jhb@freebsd.org> Cc: Garrett Cooper <yanegomi@gmail.com>, current@freebsd.org Subject: Re: [PATCH] Add locking to twe(4) so it no longer uses Giant Message-ID: <502425C0.5070303@sentex.net> In-Reply-To: <50240F5F.6000702@sentex.net> References: <201208031418.57941.jhb@freebsd.org> <201208031726.03652.jhb@freebsd.org> <502121F5.4020705@sentex.net> <201208080727.45595.jhb@freebsd.org> <5022B252.30606@sentex.net> <5023AB9D.5070608@sentex.net> <5023B824.40405@FreeBSD.org> <5023C9A6.9070502@sentex.net> <5023F199.1090201@FreeBSD.org> <50240F5F.6000702@sentex.net>
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On 8/9/2012 3:28 PM, Mike Tancsa wrote:
> On 8/9/2012 1:21 PM, John Baldwin wrote:
>>
>> Humm, I wonder if this module has a mix of old and new .o files somehow?
>> Perhaps try rebuilding twe.ko from scratch after doing a 'make clean'?
>
> I think you are right. I nuked all the kernel files and recompiled
> again, and it no longer panics and I see the entry in /dev now!?
>
> 0{offsite2}# kldload twe
> twe0: <3ware Storage Controller. Driver version 1.50.01.002> port
> 0x2000-0x200f mem 0xe2810000-0xe281000f,0xe2000000-0xe27fffff at device
> 0.0 on pci6
> twe0: [GIANT-LOCKED]
> twe0: 2 ports, Firmware FE8S 1.05.00.068, BIOS BE7X 1.08.00.048
> twe0: Calling make_dev()
> twe0: make_dev() returned 0xfffffe0122105200 (twe0)
> twed0 on twe0
> twed0: 953878MB (1953542144 sectors)
> 0{offsite2}#
OK, some more mystery.
If I load it as a kld,
I see the device. (Note, I added MDT into the version string)
0{offsite2}# twe0: <3ware Storage Controller. Driver version
1.50.01.002MDT> port 0x2000-0x200f mem
0xe2810000-0xe281000f,0xe2000000-0xe27fffff at device 0.0 on pci6
twe0: 2 ports, Firmware FE8S 1.05.00.068, BIOS BE7X 1.08.00.048
twe0: Calling make_dev()
twe0: make_dev() returned 0xfffffe0026581a00 (twe0)
twed0 on twe0
twed0: 953878MB (1953542144 sectors)
0{offsite2}# ls -l /dev/tw*
crw------- 1 root operator - 0, 37 Aug 9 16:58 /dev/twa0
crw------- 1 root operator - 0, 173 Aug 9 17:00 /dev/twe0
crw-r----- 1 root operator - 0, 174 Aug 9 17:00 /dev/twed0
Start up the tw_cli client
0{offsite2}# tw_cli
//offsite2> show
Ctl Model (V)Ports Drives Units NotOpt RRate VRate BBU
------------------------------------------------------------------------
c0 9650SE-2LP 2 2 1 0 1 1 -
//offsite2> exit
0{offsite2}# ls -l /dev/tw*
crw------- 1 root operator - 0, 37 Aug 9 16:58 /dev/twa0
crw-r----- 1 root operator - 0, 174 Aug 9 17:00 /dev/twed0
0{offsite2}#
It then disappears ?!
---Mike
--
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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