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Date:      Mon, 5 Dec 2011 17:02:45 -0500
From:      Arnaud Lacombe <lacombar@gmail.com>
To:        freebsd-net@freebsd.org
Cc:        "Jukka A. Ukkonen" <jau@iki.fi>
Subject:   msk0: initialization failed: no memory for Rx buffers
Message-ID:  <CACqU3MUiLBJ7JpjfG3ie-Ep-wrdXmd2P3-Aj=LLQgZab9PTdnw@mail.gmail.com>

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Hi folks,

FWIW, if any developers cares, I'm getting the same problem as Jukka
A. Ukkonen in [0], that is, an msk(4) interface stuck in:

msk0: prefetch unit stuck?
msk0: initialization failed: no memory for Rx buffers

hardware involved here is:

# dmesg
[...]
mskc0: <Marvell Yukon 88E8053 Gigabit Ethernet> port 0xbe00-0xbeff mem
0xfdefc000-0xfdefffff irq 16 at device 0.0 on pci1
msk0: <Marvell Technology Group Ltd. Yukon EC Id 0xb6 Rev 0x02> on mskc0
msk0: Ethernet address: 00:03:2d:09:94:3a
miibus0: <MII bus> on msk0

# pciconf -l
[...]
mskc0@pci0:1:0:0:       class=0x020000 card=0x43401148 chip=0x436211ab
rev=0x19 hdr=0x00
mskc1@pci0:2:0:0:       class=0x020000 card=0x43401148 chip=0x436211ab
rev=0x19 hdr=0x00
mskc2@pci0:3:0:0:       class=0x020000 card=0x43401148 chip=0x436211ab
rev=0x19 hdr=0x00
mskc3@pci0:4:0:0:       class=0x020000 card=0x43401148 chip=0x436211ab
rev=0x19 hdr=0x00

Memory on the system is fine:

# vmstat
 procs      memory      page                   disk   faults         cpu
 r b w     avm    fre   flt  re  pi  po    fr  sr ad0   in   sy   cs us sy id
 0 0 0  52844K  1957M     0   0   0   0     0   0   0   51   34 4044  0  0 100

# netstat -m
719/946/1665 mbufs in use (current/cache/total)
717/825/1542/262144 mbuf clusters in use (current/cache/total/max)
717/819 mbuf+clusters out of packet secondary zone in use (current/cache)
0/5/5/131072 4k (page size) jumbo clusters in use (current/cache/total/max)
0/0/0/65536 9k jumbo clusters in use (current/cache/total/max)
0/0/0/32768 16k jumbo clusters in use (current/cache/total/max)
1613K/1906K/3520K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0/3/6656 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
0 requests for I/O initiated by sendfile
0 calls to protocol drain routines

Faulty code is from 8-STABLE, i386, locally built with FLOWTABLES and
ROUTETABLES=8. Jukka's report seems to point out that -current is no
better.

Problem happened after a few minutes of not-so-heavy transfer.

 - Arnaud

[0]: http://lists.freebsd.org/pipermail/freebsd-questions/2011-November/235646.html



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