BUG: loading iwl4965 lockup CPU

BUG: loading iwl4965 lockup CPU

[Oleg Lyashko]

Hi,

Hardware: Asus M50SV, BIOS 208
OS: Debian lenny, kernel 2.6.24-1-686-bigmem

attempt to load iwl4965 crash laptop:

# modprobe iwl4965
BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
...

First compat-wireless-2.6 bug release date - 2008-05-02
(no problems with compat-wireless-2008-05-01.tar.bz2)

Regards,
Oleg Lyashko

Re: BUG: loading iwl4965 lockup CPU

[Zhu Yi]

[-- Attachment #1: Type: text/plain, Size: 382 bytes --]

On Fri, 2008-05-09 at 08:20 +0400, Oleg Lyashko wrote:
> 
> attempt to load iwl4965 crash laptop:
> 
> # modprobe iwl4965
> BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]
> BUG: soft lockup - CPU#1 stuck for 11s! [modprobe:14501]

This is fixed here. Please use the attached patch for compat-wireless.
http://marc.info/?l=linux-wireless&m=120995431612344&w=2

Thanks,
-yi

[-- Attachment #2: iwlwifi-spinlock-cw-fix.patch --]
[-- Type: text/x-patch, Size: 1160 bytes --]

diff -urp compat-wireless-2008-05-07/drivers/net/wireless/iwlwifi/iwl4965-base.c new/drivers/net/wireless/iwlwifi/iwl4965-base.c
--- compat-wireless-2008-05-07/drivers/net/wireless/iwlwifi/iwl4965-base.c	2008-05-07 12:11:10.000000000 +0800
+++ new/drivers/net/wireless/iwlwifi/iwl4965-base.c	2008-05-09 13:18:06.000000000 +0800
@@ -7102,6 +7102,7 @@ static int iwl4965_pci_probe(struct pci_
 	IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
 	priv->cfg = cfg;
 	priv->pci_dev = pdev;
+	spin_lock_init(&priv->lock);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	iwl_debug_level = priv->cfg->mod_params->debug;
diff -urp compat-wireless-2008-05-07/drivers/net/wireless/iwlwifi/iwl-core.c new/drivers/net/wireless/iwlwifi/iwl-core.c
--- compat-wireless-2008-05-07/drivers/net/wireless/iwlwifi/iwl-core.c	2008-05-07 12:11:10.000000000 +0800
+++ new/drivers/net/wireless/iwlwifi/iwl-core.c	2008-05-09 13:16:51.000000000 +0800
@@ -580,7 +580,6 @@ static int iwlcore_init_drv(struct iwl_p
 	priv->retry_rate = 1;
 	priv->ibss_beacon = NULL;
 
-	spin_lock_init(&priv->lock);
 	spin_lock_init(&priv->power_data.lock);
 	spin_lock_init(&priv->sta_lock);
 	spin_lock_init(&priv->hcmd_lock);