With the Intel 82527EI (driver: e1000e) there is an issue when running
the ptpd2 program, that leads to a kernel oops. The reason is here that
in e1000_xmit_frame() a work queue will be scheduled that has not been
initialized in this case. The work queue "tx_hwstamp_work" will only be
initialized if adapter->flags & FLAG_HAS_HW_TIMESTAMP set. This check
is missing in e1000_xmit_frame().
The following patch adds the missing check.
Signed-off-by: Mathias Koehrer <mathias.koeh...@etas.com>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-3.12.26/drivers/net/ethernet/intel/e1000e/netdev.c
===================================================================
--- linux-3.12.26.orig/drivers/net/ethernet/intel/e1000e/netdev.c
2014-08-04 10:56:56.000000000 +0200
+++ linux-3.12.26/drivers/net/ethernet/intel/e1000e/netdev.c 2014-08-07
08:05:17.000000000 +0200
@@ -5550,7 +5550,8 @@
nr_frags);
if (count) {
if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
- !adapter->tx_hwtstamp_skb)) {
+ !adapter->tx_hwtstamp_skb &&
+ (adapter->flags & FLAG_HAS_HW_TIMESTAMP))) {
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
tx_flags |= E1000_TX_FLAGS_HWTSTAMP;
adapter->tx_hwtstamp_skb = skb_get(skb);
--
--
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