lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 05 Jan 2015 14:52:06 +0100
From:	Maarten Lankhorst <>
To:	David Miller <>,
	Alexey Kuznetsov <>,
	James Morris <>,
	Hideaki YOSHIFUJI <>,
	Patrick McHardy <>
CC:, LKML <>
Subject: [RFC PATCH] unlock rtnl mutex in ic_open_devs while waiting

This fixes a deadlock with alx_link_check, which takes the rtnl_mutex in
a work item to check the link.

I have no idea whether alx should be fixed or ipconfig.c,
but this saves 120 seconds off my boot time. ;-)

Signed-off-by: Maarten Lankhorst <>
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 7fa18bc7e47f..c8aa15a0cdf4 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -270,7 +270,9 @@ static int __init ic_open_devs(void)
 			if (ic_is_init_dev(dev) && netif_carrier_ok(dev))
 				goto have_carrier;
+		rtnl_unlock();
+		rtnl_lock();
 		if (time_before(jiffies, next_msg))

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists