On Thu, Jan 04, 2007 at 01:02:08PM +0200, Kostik Belousov wrote:
> Hmm, it needs 1.198 as well. Below is aggregated patch against RELENG_6.
>
> Index: kern_conf.c
> ===================================================================
> RCS file: /usr/local/arch/ncvs/src/sys/kern/kern_conf.c,v
> retrieving revision 1.186.2.7
> diff -u -r1.186.2.7 kern_conf.c
> --- kern_conf.c 30 Oct 2006 15:43:56 -0000 1.186.2.7
> +++ kern_conf.c 4 Jan 2007 10:59:33 -0000
> @@ -676,16 +676,20 @@
> dev->si_flags &= ~SI_CLONELIST;
> }
>
> + dev->si_refcount++; /* Avoid race with dev_rel() */
> csw = dev->si_devsw;
> dev->si_devsw = NULL; /* already NULL for SI_ALIAS */
> while (csw != NULL && csw->d_purge != NULL && dev->si_threadcount) {
> - printf("Purging %lu threads from %s\n",
> - dev->si_threadcount, devtoname(dev));
> csw->d_purge(dev);
> msleep(csw, &devmtx, PRIBIO, "devprg", hz/10);
> + if (dev->si_threadcount)
> + printf("Still %lu threads in %s\n",
> + dev->si_threadcount, devtoname(dev));
> + }
> + while (dev->si_threadcount != 0) {
> + /* Use unique dummy wait ident */
> + msleep(&csw, &devmtx, PRIBIO, "devdrn", hz / 10);
> }
> - if (csw != NULL && csw->d_purge != NULL)
> - printf("All threads purged from %s\n", devtoname(dev));
>
> dev->si_drv1 = 0;
> dev->si_drv2 = 0;
> @@ -700,6 +704,7 @@
> fini_cdevsw(csw);
> }
> dev->si_flags &= ~SI_ALIAS;
> + dev->si_refcount--; /* Avoid race with dev_rel() */
>
> if (dev->si_refcount > 0) {
> LIST_INSERT_HEAD(&dead_cdevsw.d_devs, dev, si_list);
I've tried. Now machine just hangs if I try to switch from X to vty.
It stays in graphics mode locked.
Eugene
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