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From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: mlx4: kernel 3.4-rc1 breaks libumad
Date: Mon, 02 Apr 2012 07:42:56 +0000	[thread overview]
Message-ID: <4F795880.4070306@acm.org> (raw)

Hi,

Apparently applications based on libumad can find local ports with
kernel 3.2.x but not with kernel 3.4-rc1.

# uname -r
3.4.0-rc1
# ls /sys/class/infiniband/mlx4_0/ports/1/rate
/sys/class/infiniband/mlx4_0/ports/1/rate
# cat /sys/class/infiniband/mlx4_0/ports/1/rate
cat: /sys/class/infiniband/mlx4_0/ports/1/rate: Invalid argument

This breaks libumad because this makes sys_read_string() fail and hence
also get_port().

Bart.
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             reply	other threads:[~2012-04-02  7:42 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-02  7:42 Bart Van Assche [this message]
     [not found] ` <4F795880.4070306-HInyCGIudOg@public.gmane.org>
2012-04-02 10:33   ` mlx4: kernel 3.4-rc1 breaks libumad 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
     [not found]                         ` <4F79AB24.2090200-HInyCGIudOg@public.gmane.org>
2012-04-02 14:06                           ` Or Gerlitz

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