Date: Sat, 20 Aug 2005 18:47:37 +0800 From: Huang wen hui <huang@gddsn.org.cn> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: current@freebsd.org Subject: Re: suspend/resume operation broken with usb mouse Message-ID: <43070A49.9080309@gddsn.org.cn> In-Reply-To: <40238.1124530095@phk.freebsd.dk> References: <40238.1124530095@phk.freebsd.dk>
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Poul-Henning Kamp дµÀ:
>In message <430476F7.6030007@gddsn.org.cn>, Huang wen hui writes:
>
>
>>hi,
>>Using today's CURRENT, my TP42P could not resume with usb mouse.
>>cause "double fault" panic. With internal TrackPoint is OK,
>>The DDB backtrace message can be found:
>>
>>
>
>
>Can you try this patch ?
>
>Index: kern/kern_conf.c
>===================================================================
>RCS file: /home/ncvs/src/sys/kern/kern_conf.c,v
>retrieving revision 1.190
>diff -u -r1.190 kern_conf.c
>--- kern/kern_conf.c 17 Aug 2005 08:19:52 -0000 1.190
>+++ kern/kern_conf.c 20 Aug 2005 09:24:35 -0000
>@@ -443,10 +443,14 @@
> static void
> fini_cdevsw(struct cdevsw *devsw)
> {
>+ struct cdevsw *gt;
>
>- if (devsw->d_gianttrick != NULL)
>- free(devsw->d_gianttrick, M_DEVT);
>- devsw->d_gianttrick = NULL;
>+ if (devsw->d_gianttrick != NULL) {
>+ gt = devsw->d_gianttrick;
>+ memcpy(devsw, gt, sizeof *devsw);
>+ free(gt, M_DEVT);
>+ devsw->d_gianttrick = NULL;
>+ }
> devsw->d_flags &= ~D_INIT;
> }
>
>
>
ok, this patch works for me, thanks!
--hwh
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