/proc/cmdline broken since 2.4.19
PATCH 1/1 /proc/cmdline broken since 2.4.19
Reading /proc/cmdline one character at a time produces garbage since kernel version 2.4.19:
$ cat /proc/cmdline auto BOOT_IMAGE=2.4.20-x78 ro root=302 nomodules $ dd bs=1 if=/proc/cmdline | od -x 49+0 records in 49+0 records out 0000000 0200 5555 0006 0000 622d 7361 0068 5555 0000020 5555 cfcf cfcf cfcf 5555 5555 0000 0000 0000040 02f7 5555 000b 0000 6c6e 4e5f 404c 7565 0000060 0072 0000061
The following patch fixes this:
fs/proc/proc_misc.c renamed from fs/proc/proc_misc.c.orig +2 -2
@@ -422,9 +422,9 @@ int count, int *eof, void *data) { extern char saved_command_line[]; -int len; +int len =0 ; - len =snprintf (page, count,"%s\n" , saved_command_line); +proc_sprintf (page, &off, &len,"%s\n" , saved_command_line);return proc_calc_metrics (page, start, off, count, eof, len); }
Signature · 3 lines
Dick Streefland //// Altium BV [email protected] (@ @) http://www.altium.com --------------------------------oOO--(_)--OOo---------------------------