Messages in this thread | | | Date | Wed, 10 Feb 1999 03:14:29 +0000 | From | Ben Aitchison <> | Subject | Re: Slow PPP with 2.2.1 -- FIXED, but I have a question |
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On Tue, Feb 09, 1999 at 06:20:14PM -0500, Tom Sightler wrote: > Well after all the testing I did I began going throught the 2.1.102 patch > one section at a time, I backed out the irq.c changes, I lokked hard at the > ipchains stuff and concluded that since I wasn't compiling with > CONFIG_IP_FIREWALL that these couldn't be causing the problem, the > scheduling updates were almost all text comments, so only one other file of > any consequence was updated, the ibmmca.c driver for my PS/2 SCSI > controller. > > The update was the switch from cli/sti to the save_flags/restore_flags. > Almost (maybe even all) of the scsi drivers were updated with this change in > the 2.1.102 patch. Interestingly backing this patch out made my ppp > problems go away. I went ahead and did the same to the 2.2.1 tree, > recompile and my P70 is streaming along again, PPP works great not, no FRAME > errors reported anymore, everything is as it should be.
I had problems with using a Future Domain TMC-950 (pathetic 8 bit card) scsi adapter, using seagate.c until I modified it -- it was giving HUGE interrupt latency. That is, I'd loose characters at 2400 bps, with a 16550 uart. My problem is, that I don't know if I fixed it properly. But I have been using the changes without problems for quite a while. (I can't actually remember what I chanaged, though) The seagate driver was broken, before 2.1.110 or so... so I was using 2.0.35 (i think?) until it was fixed... 2.0.x and 2.2.x are behaving the same, now.
Now, I'm wondering, is it just the slow cards that have problems?
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