Date: Mon, 13 Sep 2010 11:04:47 -0700 From: Pyun YongHyeon <pyunyh@gmail.com> To: Igor Sysoev <is@rambler-co.ru> Cc: freebsd-net@freebsd.org Subject: Re: bge hangs on recent 7.3-STABLE Message-ID: <20100913180447.GA1229@michelle.cdnetworks.com> In-Reply-To: <20100913142707.GL10050@rambler-co.ru> References: <20100909102826.GB53812@rambler-co.ru> <20100909201050.GG7203@michelle.cdnetworks.com> <20100909211808.GJ7203@michelle.cdnetworks.com> <20100913142707.GL10050@rambler-co.ru>
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On Mon, Sep 13, 2010 at 06:27:08PM +0400, Igor Sysoev wrote: > On Thu, Sep 09, 2010 at 02:18:08PM -0700, Pyun YongHyeon wrote: > > > On Thu, Sep 09, 2010 at 01:10:50PM -0700, Pyun YongHyeon wrote: > > > On Thu, Sep 09, 2010 at 02:28:26PM +0400, Igor Sysoev wrote: > > > > Hi, > > > > > > > > I have several hosts running FreeBSD/amd64 7.2-STABLE updated on 11.01.2010 > > > > and 25.02.2010. Hosts process about 10K input and 10K output packets/s > > > > without issues. One of them, however, is loaded more than others, so it > > > > processes 20K/20K packets/s. > > > > > > > > Recently, I have upgraded one host to 7.3-STABLE, 24.08.2010. > > > > Then bge on this host hung two times. I was able to restart it from > > > > console using: > > > > /etc/rc.d/netif restart bge0 > > > > > > > > Then I have upgraded the most loaded (20K/20K) host to 7.3-STABLE, 07.09.2010. > > > > After reboot bge hung every several seconds. I was able to restart it, > > > > but bge hung again after several seconds. > > > > > > > > Then I have downgraded this host to 7.3-STABLE, 14.08.2010, since there > > > > were several if_bge.c commits on 15.08.2010. The same hangs. > > > > Then I have downgraded this host to 7.3-STABLE, 17.03.2010, before > > > > the first if_bge.c commit after 25.02.2010. Now it runs without hangs. > > > > > > > > The hosts are amd64 dual core SMP with 4G machines. bge information: > > > > > > > > bge0@pci0:4:0:0: class=0x020000 card=0x165914e4 chip=0x165914e4 rev=0x11 hdr=0x00 > > > > vendor = 'Broadcom Corporation' > > > > device = 'NetXtreme Gigabit Ethernet PCI Express (BCM5721)' > > > > > > > > bge0: <Broadcom NetXtreme Gigabit Ethernet Controller, ASIC rev. 0x004101> mem 0xfe5f0000-0xfe5fffff irq 19 at device 0.0 on pci4 > > > > miibus1: <MII bus> on bge0 > > > > brgphy0: <BCM5750 10/100/1000baseTX PHY> PHY 1 on miibus1 > > > > brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto > > > > bge0: Ethernet address: 00:e0:81:5f:6e:8a > > > > > > > > > > Could you show me verbose boot message(bge part only)? > > > Also show me the output of "pciconf -lcbv". > > > > > > > Forgot to send a patch. Let me know whether attached patch fixes > > the issue or not. > > > Index: sys/dev/bge/if_bge.c > > =================================================================== > > --- sys/dev/bge/if_bge.c (revision 212341) > > +++ sys/dev/bge/if_bge.c (working copy) > > @@ -3386,9 +3386,11 @@ > > sc->bge_rx_saved_considx = rx_cons; > > bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); > > if (stdcnt) > > - bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); > > + bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, (sc->bge_std + > > + BGE_STD_RX_RING_CNT - 1) % BGE_STD_RX_RING_CNT); > > if (jumbocnt) > > - bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); > > + bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, (sc->bge_jumbo + > > + BGE_JUMBO_RX_RING_CNT - 1) % BGE_JUMBO_RX_RING_CNT); > > #ifdef notyet > > /* > > * This register wraps very quickly under heavy packet drops. > > Thank you, it seems the patch has fixed the bug. > BTW, I noticed the same hungs on FreeBSD 8.1, date=2010.09.06.23.59.59 > I will apply the patch on all my updated hosts. > Thanks for testing. I'm afraid bge(4) in HEAD, stable/8 and stable/7(including 8.1-RELEASE and 7.3-RELEASE) may suffer from this issue. Let me know what other hosts work with the patch.
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