Date: Thu, 3 May 2001 18:02:10 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: current@freebsd.org Subject: Re: panic in fxp driver Message-ID: <200105031802.LAA28955@usr05.primenet.com>
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] I would be quite interested in knowing just how you manage ] to accomplish that, given that all the transmit control buffers ] are arranged in a circular linked list: ] ] fxp_init(void *xsc) ] { ] ... ] for (i = 0; i < FXP_NTXCB; i++) { ] ... ] txp[i].next = &txp[(i + 1) & FXP_TXCB_MASK]; ] } ] ] ] I would suggest actually examining the rest of the code to see ] how it works before making erroneous proclamations based on the ] myopic examination of a single statement. I would suggest a less than myopic examination of the subject line. In particular, I saw a repeatable panic under extremely heavy load. Please consider the case where there are two mbuf chains being transmitted, which look like this: A B header O O \ / \ / \ / data 1 O | data 2 O | data 3 O Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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