Date: Sun, 02 Jan 2000 02:30:50 +0900 From: Yoshinobu Inoue <shin@nd.net.fujitsu.co.jp> To: joe@FreeBSD.ORG Cc: joe@pavilion.net, freebsd-bugs@FreeBSD.ORG Subject: Re: kern/15742: Laptop -current panics in in6_ifattach after suspend Message-ID: <20000102023050X.shin@nd.net.fujitsu.co.jp> In-Reply-To: <20000101163112Y.shin@nd.net.fujitsu.co.jp> References: <200001010339.TAA16831@freefall.freebsd.org> <20000101163112Y.shin@nd.net.fujitsu.co.jp>
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> > I don't believe that this has fixed the problem. I've just got > > a panic with exactly the same backtrace on a kernel that I've confirmed > > has this patch in. > > Please let me know the name of the LAN card driver, you are > using. Sorry for my stupid question. It was already written in your previous bug report. I also have 3Com Etherlink III 3C589D, and I tried several tests on my FreeBSD current PC. Unfortunately my PC (panasonic Let's Note AL-N4) can not do software suspend(apm -Z or zzz) in FreeBSD current environment, so I tried pccardc power 0 0 (my ep0 power down) Then my ep0 disappeared, and then pccardc power 0 1 Then my ep0 appeared again. And there was no problem. I think essentialy same thing will happen on ep when suspend/resume is done. (By the way, at least in my environment, dynamic ep0 plugging/unplugging is not seems to be supported.) I also reviewed several code part, and it seems to me that panicing at in6_ifattach()(line 384 of in6_ifattach.c) after suspend/resume is very not likely to happen for any interface which calls if_detach() at suspend. (If sys/net/if.c version is 1.82) And if some interface don't call if_detach at suspend, then it will panic at any ifconfig related operation. (e.g. some problem should also happen on a kernel where INET6 is not defined.) Is your current problem exactly same as before?, and happens only on INET6 defined kernel? I am afraid if it is some other new problem. Yoshinobu Inoue To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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