From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: mlx4: kernel 3.4-rc1 breaks libumad
Date: Mon, 02 Apr 2012 13:35:32 +0000 [thread overview]
Message-ID: <4F79AB24.2090200@acm.org> (raw)
In-Reply-To: <4F79A0C5.2030805-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
On 04/02/12 12:51, Or Gerlitz wrote:
> On 4/2/2012 2:48 PM, Bart Van Assche wrote:
>> The two ports are connected back-to-back to another mlx4 HCA. I
>> noticed this behavior change since opensm stopped working after
>> rebooting into 3.4-rc1.
>
> can you add these prints and send me the output after attempting to cat
> the rate file?
Some additional info:
- This issue only occurs if the back-to-back connected system is down,
not if it is running.
- The output I get with the other system down is:
# cat /sys/class/infiniband/mlx4_0/ports/1/link_layer
InfiniBand
# dmesg -c >/dev/null
# cat /sys/class/infiniband/mlx4_0/ports/1/rate
cat: /sys/class/infiniband/mlx4_0/ports/1/rate: Invalid argument
# dmesg -c
ib_link_query_port active_speed 7
rate_show ret 0 for ib_query_port dev mlx4_0 port 1 link 1
Bart.
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next prev parent reply other threads:[~2012-04-02 13:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 7:42 mlx4: kernel 3.4-rc1 breaks libumad Bart Van Assche
[not found] ` <4F795880.4070306-HInyCGIudOg@public.gmane.org>
2012-04-02 10:33 ` Or Gerlitz
[not found] ` <4F798069.4030305-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2012-04-02 11:16 ` Bart Van Assche
[not found] ` <4F798A9B.7060805-HInyCGIudOg@public.gmane.org>
2012-04-02 11:20 ` Or Gerlitz
[not found] ` <4F798B9A.6090309-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2012-04-02 11:48 ` Bart Van Assche
[not found] ` <4F799222.3050306-HInyCGIudOg@public.gmane.org>
2012-04-02 12:51 ` Or Gerlitz
[not found] ` <4F79A0C5.2030805-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2012-04-02 13:02 ` Or Gerlitz
[not found] ` <4F79A359.2020204-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2012-04-02 13:25 ` Hal Rosenstock
[not found] ` <4F79A8C4.5000604-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2012-04-02 14:10 ` Hal Rosenstock
2012-04-02 14:51 ` Or Gerlitz
2012-04-03 21:37 ` Ira Weiny
2012-04-02 13:35 ` Bart Van Assche [this message]
[not found] ` <4F79AB24.2090200-HInyCGIudOg@public.gmane.org>
2012-04-02 14:06 ` Or Gerlitz
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