Date: Mon, 31 Jan 2011 16:05:13 +0100 From: Przemyslaw Frasunek <przemyslaw@frasunek.com> To: Gleb Smirnoff <glebius@FreeBSD.org> Cc: freebsd-net@FreeBSD.org Subject: Re: Netgraph/mpd5 stability issues Message-ID: <4D46CFA9.5050500@frasunek.com> In-Reply-To: <4D46BBE7.7040006@frasunek.com> References: <4D3011DB.9050900@frasunek.com> <20110131125440.GK62007@FreeBSD.org> <4D46BBE7.7040006@frasunek.com>
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> (kgdb) print *ng_name_hash[116].lh_first
It looks like this one is corrupted:
(kgdb) print
*ng_name_hash[116].lh_first.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next
$19 = {nd_name = "ng258", '\0' <repeats 26 times>, nd_type = 0xc61871a0,
nd_flags = 0, nd_refs = 1, nd_numhooks = 0, nd_private = 0xccabdbc0,
nd_ID = 454433, nd_hooks = {lh_first = 0x0}, nd_nodes = {
le_next = 0xcc28c380, le_prev = 0xcbadadbc}, nd_idnodes = {
le_next = 0xcc410400, le_prev = 0xc5f4f764}, nd_work = {tqe_next = 0x0,
tqe_prev = 0x0}, nd_input_queue = {q_flags = 0, q_mtx = {lock_object = {
lo_name = 0xc5f4e986 "ng_node", lo_type = 0xc5f4e986 "ng_node",
lo_flags = 16973824, lo_witness_data = {lod_list = {stqe_next = 0x0},
lod_witness = 0x0}}, mtx_lock = 4, mtx_recurse = 0}, queue = 0x0,
last = 0xc69e16f0, q_node = 0xc69e1680}}
nd_nodes->le_prev is 0xcbadadbc
(kgdb) print
*ng_name_hash[116].lh_first.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next
$20 = {
nd_name = "\b\000\000\000
\000\000\000\005\000\000\000\000\000\000\000\220_q\001\036QĆCcmd5\000\000\000",
nd_type = 0x0, nd_flags = 0, nd_refs = 0,
nd_numhooks = 0, nd_private = 0x0, nd_ID = 0, nd_hooks = {
lh_first = 0x68676972}, nd_nodes = {le_next = 0x74, le_prev = 0x0},
nd_idnodes = {le_next = 0x0, le_prev = 0x0}, nd_work = {tqe_next = 0x0,
tqe_prev = 0x0}, nd_input_queue = {q_flags = 0, q_mtx = {lock_object = {
lo_name = 0x0, lo_type = 0x0, lo_flags = 1, lo_witness_data = {
lod_list = {stqe_next = 0x6}, lod_witness = 0x6}}, mtx_lock = 0,
mtx_recurse = 0}, queue = 0x0, last = 0xcc28c3f0, q_node = 0xcc28c380}}
(kgdb) print
*ng_name_hash[116].lh_first.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next.nd_nodes.le_next
Cannot access memory at address 0x74
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