From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 121531] Adaptec 7805H SAS HBA (pm80xx): hangs when writing
>80MB at once
Date: Tue, 01 Nov 2016 22:09:06 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=121531
--- Comment #23 from Chloé Desoutter ---
I can trigger crashes after a long while in a heavy workload, quite randomly,
with 256.
Out of curiosity I checked the pmspcv driver from FreeBSD and they use a lower
value still :
#define MPI_MAX_INBOUND_QUEUES 64 /**< Maximum number of inbound
queues */
#define MPI_MAX_OUTBOUND_QUEUES 64 /**< Maximum number of outbound
queues */
/**< Max # of memory chunks
supported */
#define MPI_MAX_MEM_REGIONS (MPI_MAX_INBOUND_QUEUES +
MPI_MAX_OUTBOUND_QUEUES) + 4
#define MPI_LOGSIZE 4096 /**< default size */
so I'll try with this value and give feedback for stability and performance.
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