On 20.07.2013 22:43, Taku YAMAMOTO wrote:
After r253088, systems with IPSEC and KSTACK_PAGES < 4 crashes on booting into multi-user mode.The crash is due to sysctl -a in /etc/rc.d/initrandom ended up with kernel stack overflow. The problem is what we have in sys/net/vnet.h: #define SYSCTL_VNET_PCPUSTAT(parent, nbr, name, type, array, desc) \ static int \ array##_sysctl(SYSCTL_HANDLER_ARGS) \ { \ type s; \ CTASSERT((sizeof(type) / sizeof(uint64_t)) == \ (sizeof(VNET(array)) / sizeof(counter_u64_t))); \ COUNTER_ARRAY_COPY(VNET(array), &s, sizeof(type) / sizeof(uint64_t));\ if (req->newptr) \ COUNTER_ARRAY_ZERO(VNET(array), \ sizeof(type) / sizeof(uint64_t)); \ return (SYSCTL_OUT(req, &s, sizeof(type))); \ } \ SYSCTL_VNET_PROC(parent, nbr, name, CTLTYPE_OPAQUE | CTLFLAG_RW, NULL, \ 0, array ## _sysctl, "I", desc) where type is struct ipsecstat which is 12560 bytes of size (larger than 3 pages) of size when processing net.inet.ipsec.ipsecstats.
I can confirm. I've been hit by that problem on MIPS platform. -- Pozdrawiam, Maciej Milewski _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
