From: Vangelis Tasoulas <vangelis-S8y2klWGCOFhl2p70BpVqQ@public.gmane.org>
To: Linux RDMA Mailing List
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: assertion failed in osm_switch_get_lft_block() function
Date: Fri, 19 Dec 2014 21:46:47 +0100 [thread overview]
Message-ID: <54948EB7.1020706@simula.no> (raw)
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Hello,
When I use LIDs from the top LFT block (0xbfc0-0xbfff), I get an
assertion error from the function osm_switch_get_lft_block() which is
implemented in osm_switch.c.
The line is this one:
CL_ASSERT(base_lid_ho + IB_SMP_DATA_SIZE <= IB_LID_UCAST_END_HO);
In the topmost LFT block, the base_lid_ho has the value 49088 and the
IB_SMP_DATA_SIZE is 64. Together they add up to 49152 but the assertion
checks if they are less than 0xbfff (49151).
Shouldn't this line be something like the following?
CL_ASSERT(base_lid_ho + IB_SMP_DATA_SIZE - 1 <= IB_LID_UCAST_END_HO);
or
CL_ASSERT(base_lid_ho + IB_SMP_DATA_SIZE <= IB_LID_UCAST_END_HO + 1);
Cheers,
Vangelis
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next reply other threads:[~2014-12-19 20:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-19 20:46 Vangelis Tasoulas [this message]
[not found] ` <54948EB7.1020706-S8y2klWGCOFhl2p70BpVqQ@public.gmane.org>
2014-12-20 13:08 ` assertion failed in osm_switch_get_lft_block() function Hal Rosenstock
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