https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277849
--- Comment #3 from Martin Matuska <m...@freebsd.org> ---
I can confirm that this workaround avoids the panic makes the network card
operate:
--- a/sys/net/if_media.c
+++ b/sys/net/if_media.c
@@ -272,19 +272,19 @@ ifmedia_ioctl(struct ifnet *ifp, struct ifreq *ifr,
struct ifmedia *ifm,
/*
* Get list of available media and current media on interface.
*/
case SIOCGIFMEDIA:
case SIOCGIFXMEDIA:
{
struct ifmedia_entry *ep;
int i;
- if (ifmr->ifm_count < 0)
+ if (ifmr->ifm_count < 0 || ifm->ifm_status == NULL)
return (EINVAL);
if (cmd == SIOCGIFMEDIA) {
ifmr->ifm_active = ifmr->ifm_current = ifm->ifm_cur ?
compat_media(ifm->ifm_cur->ifm_media) : IFM_NONE;
} else {
ifmr->ifm_active = ifmr->ifm_current = ifm->ifm_cur ?
ifm->ifm_cur->ifm_media : IFM_NONE;
}
--
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