The patch titled
netconsole: fix soft lockup when removing module
has been added to the -mm tree. Its filename is
netconsole-fix-soft-lockup-when-removing-module.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: netconsole: fix soft lockup when removing module
From: Jarek Poplawski <jarkao2@xxxxx>
Signed-off-by: Jarek Poplawski <jarkao2@xxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
net/core/netpoll.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff -puN net/core/netpoll.c~netconsole-fix-soft-lockup-when-removing-module net/core/netpoll.c
--- a/net/core/netpoll.c~netconsole-fix-soft-lockup-when-removing-module
+++ a/net/core/netpoll.c
@@ -72,7 +72,8 @@ static void queue_process(struct work_st
netif_tx_unlock(dev);
local_irq_restore(flags);
- schedule_delayed_work(&npinfo->tx_work, HZ/10);
+ if (atomic_read(&npinfo->refcnt))
+ schedule_delayed_work(&npinfo->tx_work, HZ/10);
return;
}
netif_tx_unlock(dev);
@@ -785,9 +786,15 @@ void netpoll_cleanup(struct netpoll *np)
if (atomic_dec_and_test(&npinfo->refcnt)) {
skb_queue_purge(&npinfo->arp_tx);
skb_queue_purge(&npinfo->txq);
- cancel_rearming_delayed_work(&npinfo->tx_work);
+ cancel_delayed_work(&npinfo->tx_work);
flush_scheduled_work();
+ /* clean after last, unfinished work */
+ if (!skb_queue_empty(&npinfo->txq)) {
+ struct sk_buff *skb;
+ skb = __skb_dequeue(&npinfo->txq);
+ kfree_skb(skb);
+ }
kfree(npinfo);
}
}
_
Patches currently in -mm which might be from jarkao2@xxxxx are
netconsole-fix-soft-lockup-when-removing-module.patch
-
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