All customers except US A&D: to ensure that you can access all of your product downloads, you must log in to the Wind River Delivers portal and visit the My Products page to force an initial sync of your product entitlement. Only after you’ve completed this step will you be able to access and download product content through the Artifacts, Registry, and Git interfaces. This also applies to users attempting to run the Wind River installer in maintenance or update mode or Linux installation updates at the command line.

Wind River Support Network

HomeOther Downloadswrlinux 1.5 : dev_printk is not checking arguments as the standard kernel dev_printk is doing.
Recommended Type: Patch

wrlinux 1.5 : dev_printk is not checking arguments as the standard kernel dev_printk is doing.

Released: Sep 25, 2008     Updated: Sep 25, 2008


the drivers (in this specific case the scsi driver sym53c8xx_2) is using dev_info to dump strings. for example in the

drivers\scsi\sym53c8xx_2\sym_glue.c :
"tagged command queuing %s, command queue depth %d.\n",
lp->s.reqtags ? "enabled" : "disabled",

The tp->starget->dev.driver is set to NULL in that case, which makes the dev_info crash.
In our device.h (that we patch) we define :

#define dev_info(dev, format, arg…) \
dev_printk(KERN_INFO , dev , format , ## arg)

And in the same file, a bit above:
#define dev_printk(level, dev, format, arg…) \
do { \
printk(level "%s %s: " format , (dev)->driver->name , (dev)->bus_id , ## arg); \
evl_printk((dev)->driver->name , 0, (level[1]-'0') , \
"%s %s: " format , (dev)->driver->name , (dev)->bus_id , ## arg); \
} while (0)
#define dev_printk(level, dev, format, arg…) \
printk(level "%s %s: " format , (dev)->driver->name , (dev)->bus_id , ## arg)

The accesses to (dev)->driver->name are crashing the modules…because (dev)->driver==0 IDENTIFIER = WIND00112878

Product Version

Linux Platforms 1.x


Installation Notes

Installation Notes is for 1.4 is for 1.5

1. Unzip the patch under [install_dir]/updates

2. Install the patch CD by entering the patch CD directory and run setup_linux.

3. This is a source only patch so you will have to build the kernel

4. Issue a make fs and make the kernel in a configured directory.

5. Upload the kernel and rootfs into the target and boot it up.

Live chat