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Date: Tue, 22 Jul 2008 13:14:00 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: netdev@...r.kernel.org Cc: bugme-daemon@...zilla.kernel.org, jnelson-kernel-bugzilla@...poni.net Subject: Re: [Bugme-new] [Bug 11147] New: tg3 + jumbo frames + scatter-gather == inoperative NIC (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Tue, 22 Jul 2008 12:45:54 -0700 (PDT) bugme-daemon@...zilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=11147 > > Summary: tg3 + jumbo frames + scatter-gather == inoperative NIC > Product: Drivers > Version: 2.5 > KernelVersion: 2.6.25.9 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Network > AssignedTo: jgarzik@...ox.com > ReportedBy: jnelson-kernel-bugzilla@...poni.net > > > Latest working kernel version: n/a > Earliest failing kernel version: 2.6.25.9 > Distribution: openSUSE 11.0 > Hardware Environment: 32bit x86 (AMD Athlon XP 2200+) > Software Environment: openSUSE 11.0 > Problem Description: > > When I enable jumbo frames the board still *appears* to work but > nobody can communicate with it. The other machines (multiple) in the > network don't see ANY traffic FROM the tg3. On the machine with the > tg3, tcpdump shows arp requests (from the other machines) and arp > replies. > > After much work, I have determined the problem to be a combination of > scatter-gather and jumbo frames. When both are used, the card does not > work correctly. Disabling *either* appears to work but no benefit is > realized until the interface is brought down and back up again. > > An "ethtool -t eth0" shows a single failed test (registers). I have a > register dump and anything else anybody might want if this can be > useful in bug-fixing. > > I also saw this: > > tg3: DEBUG: MAC_TX_STATUS[00000008] MAC_RX_STATUS[00000006] > tg3: DEBUG: RDMAC_STATUS[00000000] WDMAC_STATUS[00000000] > tg3: tg3_stop_block timed out, ofs=1400 enable_bit=2 > tg3: tg3_stop_block timed out, ofs=c00 enable_bit=2 > > > Steps to reproduce: > > I've also tried the tg3.[c,h] compiled against 2.6.25.9 but using the latest > git source from either linux-2.6 or netdev-2.6 as of 17 July 2008. > > tg3.c:v3.92.1 (June 9, 2008) > the tg3.c sha1sum is 97c198a8152045f2e7da5fe0d702df1cd185cb8d. > > -- 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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