[krbdev.mit.edu #2119] Linux device number bug report

Liang jianhua via RT rt-comment at krbdev.mit.edu
Thu Jan 15 02:06:25 EST 2004


Hello,

I have some questions about device number extension.

In Linux kernel 2.6, device number will be extended from 16-bit to 32-bit. All utilities and libraries should make corresponding extension for this new feature in kernel 2.6. 

As the format of extended device number is as following: mmmm mmmm mmmm MMMM MMMM MMMM mmmm mmmm, that "major" should be 12-bit, and "minor" should be 20-bit. "M" means major device number. "m" means minor device number.

But I find that ¡°krb5-1.2.7¡± uses structure dev_t and operates the minor device number as 8-bit.  
In file krb5-1.2.7/src/util/pty/getpty.c: 109
       ptynum = (int)(stb.st_rdev&0xFF)

So it seems not to correspond to device number extension.

Since I didn¡¯t find any information about this aspect in homepage of this package, I wonder whether the latest version has completed the device number extension? If not, will it be completed in the future? And when?

Looking forward to answering.
Liang Jianhua
regards
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Liang Jianhua
Dept. of Technology and Development 
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
No. 16-5, Guanzhou Rd., Nanjing, P.R.China 
PHONE: +86+25-6630523-636
FUJITSU INTERNAL: 79955-636
FAX: +86+25-3317685
Mail: nuljh at nanjing-fnst.com
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