Date: Thu, 29 Oct 2009 17:50:05 GMT From: Mark Atkinson <atkin901@yahoo.com> To: freebsd-net@FreeBSD.org Subject: Re: kern/124127: [msk] watchdog timeout (missed Tx interrupts) -- recovering Message-ID: <200910291750.n9THo5Fi038988@freefall.freebsd.org>
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The following reply was made to PR kern/124127; it has been noted by GNATS. From: Mark Atkinson <atkin901@yahoo.com> To: pyunyh@gmail.com Cc: bug-followup@FreeBSD.org Subject: Re: kern/124127: [msk] watchdog timeout (missed Tx interrupts) -- recovering Date: Thu, 29 Oct 2009 10:47:47 -0700 (PDT) ----- Original Message ---- From: Pyun YongHyeon <pyunyh@gmail.com> Sent: Thu, October 29, 2009 9:49:09 AM Subject: Re: kern/124127: [msk] watchdog timeout (missed Tx interrupts) -- recovering >I think it's not a bug of msk(4). Qin Li fixed the bug in arp code. >See r198301. Thanks I saw the intr call in the trace and assumed wrong, the 'lltable' should have tipped me off. >For watchdog timeout issues on 88E8053 controller, did you ever try >disabling MSI? I haven't tried that lately in -current, last time I did that msk did not work at all. Will retry and report back. > msk(4) was changed a lot since 7.0-RELEASE to >support newer controllers and added several workarounds to address >silicon bugs. So don't blindly apply experimental patches to your >controller. Yes, this box runs -current constantly, only recently did I have to give up my dual Intel adapter and go back to using the on-board pci-e yukon, and thus re-experiencing this issue. > 88E8053 also has a couple of hardware bugs but I guess >msk(4) already incorporated required workarounds. So if you can >reliably reproduce watchdog timeouts please let me know. It still repros on -current, hence me trying out the experimental patches in the PR and reporting back. As I reported in this PR earlier I could still hit the watchdog after a week of runtime, but as of now I don't have a reliable repro. BTW thanks for all your hard work on hardware NIC support. Very much appreciated.
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