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Date: Fri, 8 Jan 2010 10:25:50 -0800 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: "Matt Carlson" <mcarlson@...adcom.com> Cc: "Eric Dumazet" <eric.dumazet@...il.com>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: tg3 appears to be sick in 2.6.33 On Friday 08 January 2010 10:09:15 am Matt Carlson wrote: > On Thu, Jan 07, 2010 at 05:36:00PM -0800, Dmitry Torokhov wrote: > > On Thu, Jan 07, 2010 at 04:14:54PM -0800, Dmitry Torokhov wrote: > > > On Thu, Jan 07, 2010 at 03:53:09PM -0800, Matt Carlson wrote: > > > > On Thu, Jan 07, 2010 at 02:45:43PM -0800, Dmitry Torokhov wrote: > > > > > On Thursday 07 January 2010 02:24:44 pm Eric Dumazet wrote: > > > > > > Le 07/01/2010 21:48, Matt Carlson a ?crit : > > > > > > > Nothing jumps to mind. Let me see if I can repro this here. > > > > > > > > > > > > > > On Thu, Jan 07, 2010 at 11:56:31AM -0800, Dmitry Torokhov wrote: > > > > > > >> Hi, > > > > > > >> > > > > > > >> Ever since I moved post 2.6.32 tg3 seems to be very sick in my > > > > > > >> Latitude D630, it discards most of the packages for some > > > > > > >> reason: > > > > > > >> > > > > > > >> [root@...r-d630 ~]# ethtool -S eth0 | grep rx_ > > > > > > >> rx_octets: 35886 > > > > > > >> rx_fragments: 0 > > > > > > >> rx_ucast_packets: 9 > > > > > > >> rx_mcast_packets: 93 > > > > > > >> rx_bcast_packets: 237 > > > > > > >> rx_fcs_errors: 0 > > > > > > >> rx_align_errors: 0 > > > > > > >> rx_xon_pause_rcvd: 0 > > > > > > >> rx_xoff_pause_rcvd: 0 > > > > > > >> rx_mac_ctrl_rcvd: 0 > > > > > > >> rx_xoff_entered: 0 > > > > > > >> rx_frame_too_long_errors: 0 > > > > > > >> rx_jabbers: 0 > > > > > > >> rx_undersize_packets: 0 > > > > > > >> rx_in_length_errors: 0 > > > > > > >> rx_out_length_errors: 0 > > > > > > >> rx_64_or_less_octet_packets: 0 > > > > > > >> rx_65_to_127_octet_packets: 0 > > > > > > >> rx_128_to_255_octet_packets: 0 > > > > > > >> rx_256_to_511_octet_packets: 0 > > > > > > >> rx_512_to_1023_octet_packets: 0 > > > > > > >> rx_1024_to_1522_octet_packets: 0 > > > > > > >> rx_1523_to_2047_octet_packets: 0 > > > > > > >> rx_2048_to_4095_octet_packets: 0 > > > > > > >> rx_4096_to_8191_octet_packets: 0 > > > > > > >> rx_8192_to_9022_octet_packets: 0 > > > > > > >> rx_discards: 304 > > > > > > >> rx_errors: 0 > > > > > > >> rx_threshold_hit: 0 > > > > > > >> > > > > > > >> The above on last night pull from Linux (so 2.6.33+). > > > > > > >> > > > > > > >> Everything works fine if I use wireless or another wired card > > > > > > >> (Realtek in cardbus slot): > > > > > > >> > > > > > > >> [root@...r-d630 ~]# lspci | grep -ri net > > > > > > >> 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > > > > > > >> RTL-8139/8139C/8139C+ (rev 10) > > > > > > >> 09:00.0 Ethernet controller: Broadcom Corporation NetXtreme > > > > > > >> BCM5755M Gigabit Ethernet PCI Express (rev 02) > > > > > > >> 0c:00.0 Network controller: Intel Corporation PRO/Wireless > > > > > > >> 3945ABG [Golan] Network Connection (rev 02) > > > > > > >> > > > > > > >> [root@...r-d630 ~]# ethtool eth0 > > > > > > >> Settings for eth0: > > > > > > >> Supported ports: [ TP ] > > > > > > >> Supported link modes: 10baseT/Half 10baseT/Full > > > > > > >> 100baseT/Half 100baseT/Full > > > > > > >> 1000baseT/Half 1000baseT/Full > > > > > > >> Supports auto-negotiation: Yes > > > > > > >> Advertised link modes: 10baseT/Half 10baseT/Full > > > > > > >> 100baseT/Half 100baseT/Full > > > > > > >> 1000baseT/Half 1000baseT/Full > > > > > > >> Advertised auto-negotiation: Yes > > > > > > >> Speed: 1000Mb/s > > > > > > >> Duplex: Full > > > > > > >> Port: Twisted Pair > > > > > > >> PHYAD: 1 > > > > > > >> Transceiver: internal > > > > > > >> Auto-negotiation: on > > > > > > >> Supports Wake-on: g > > > > > > >> Wake-on: g > > > > > > >> Current message level: 0x000000ff (255) > > > > > > >> Link detected: yes > > > > > > >> > > > > > > >> Any ideas? Thanks! > > > > > > > > > > > > My laptop is a D630, and running 2.6.33-rc3 with no special > > > > > > problems on tg3 > > > > > > > > > > This is wierd... It all works well with Fedora 12 kernel and .32 so > > > > > hardware is fine here. I think it also worked when I plugged it > > > > > into my home router (will try it again tonight). But in the office > > > > > it just does not want to work. It's like it just does not like the > > > > > addresses that we use here... > > > > > > > > Is the problem related to link speed? I see that Eric was running at > > > > 100Mbps. Your ethtool output above shows that you are running at > > > > 1Gbps. > > > > > > Indeed I have 100Mbps at home and 1Gb in the office.. I amy try playing > > > with it some more if you want but that patch you sent seems to have > > > fixed the issue for me... > > > > > > Except that sice I started using tg3 in couple of hours the box locked > > > up completely once and panicked twice; of course it happened in X so no > > > traces whatsoever. Maybe a coincidence though, I am running with nvidia > > > driver... > > > > No, something is definitely going on. I can work for a long time using > > the Realtek card but if I switch to tg3 then pretty quickly network gets > > stuck again and in a minute or so the box panics. Last time that > > happened I switched to the text console and managed to captute an oops > > (attached) but there is nothing really conclusive there... > > > > Thanks. > > I looked over all the patches I submitted between tg3 versions 3.102 > and 3.105. Long story short, I didn't see anything particularly > suspicious. > > Could you try dropping in the tg3.c and tg3.h from the 2.6.32 kernel > into your 2.6.33 source tree and see if you encounter the same problem? > skb_dma_map/unmap are gone from 2.6.33 so direct drop does not work :( -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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