netdev - Re: [PATCH] e1000: Dump the eeprom when a user encounters a bad checksum

lists.openwall.net		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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Sat, 15 Dec 2007 12:35:35 -0800
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Auke Kok <auke-jan.h.kok@...el.com>, jeff@...zik.org,
	netdev@...r.kernel.org, davem@...emloft.net,
	john.ronciak@...el.com, jesse.brandeburg@...el.com,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: Re: [PATCH] e1000: Dump the eeprom when a user encounters a bad
	checksum

Joe Perches wrote:
> On Fri, 2007-12-14 at 15:35 -0800, Auke Kok wrote: 
>> +	printk(KERN_ERR "/*********************/\n");
>> +	printk(KERN_ERR "Current EEPROM: 0x%04x\nCalculated    : 0x%04x\n",
>> +	       csum_old, csum_new);
> 
> Multiline printks need a KERN_<level> after every newline.  Perhaps:
> 
> 	printk(KERN_ERR "Current EEPROM: 0x%04x\n"
> 	       KERN_ERR "Calculated    : 0x%04x\n", 
> 	       csum_old, csum_new);
> 
>> +	printk(KERN_ERR "Offset   Values\n");
>> +	printk(KERN_ERR "======   ======\n");
>> +	for (i = 0; i < eeprom.len; i += 16)
>> +		printk(KERN_ERR "0x%04x   "
>> +		       "%02x %02x %02x %02x %02x %02x %02x %02x "
>> +		       "%02x %02x %02x %02x %02x %02x %02x %02x\n",
>> +		       i, data[i], data[i + 1], data[i + 2], data[i + 3],
>> +		       data[i + 4], data[i + 5], data[i + 6], data[i + 7],
>> +		       data[i + 8], data[i + 9], data[i + 10], data[i + 11],
>> +		       data[i + 12], data[i + 13], data[i + 14], data[i + 15]);
> 
> 	print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data,
> 		       eeprom.len, true); 
> 
>> +	printk(KERN_ERR "Include this output when contacting your support "
>> +	       "provider.\n\nThis is not a software error! Something bad "
>> +	       "happened to your hardware or\nEEPROM image. Ignoring this "
>> +	       "problem could result in further problems,\npossibly loss "
>> +	       "of data, corruption or system hangs!\n\n");
>> +	printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, "
>> +	       "which is invalid\nand requires you to set the proper MAC "
>> +	       "address manually before continuing\nto enable this network "
>> +	       "device.\n\n");
>> +	printk(KERN_ERR "Please inspect the EEPROM dump and report the issue "
>> +	       "to your hardware vendor\nor Intel Customer Support: "
>> +	       "linux-nics@...el.com\n");
> 
> multiline printks...
> 

given these and Randy's comments I'll respin this and resubmit. thanks for the
comments!

Auke

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html