Ian,
I'm seeing this and struggling to figure out what is going on, any
ideas?
# touch empty
# xl -N cr empty bootloader_args='1,2,3'
Parsing config file empty
empty:2: config parsing error near `,': syntax error, unexpected ',', expecting
NEWLINE or ';'
*** glibc detected *** xl: double free or corruption (fasttop): 0x080625f0 ***
gdb reports the backtrace as:
#0 0xff7fe424 in __kernel_vsyscall ()
#1 0xb7e5c751 in *__GI_raise (sig=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2 0xb7e5fb82 in *__GI_abort () at abort.c:92
#3 0xb7e9318d in __libc_message (do_abort=2, fmt=0xb7f57738 "*** glibc
detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#4 0xb7e9d281 in malloc_printerr (action=<value optimized out>, str=0x6
<Address 0x6 out of bounds>, ptr=0x80625f0) at malloc.c:6267
#5 0xb7e9ead8 in _int_free (av=<value optimized out>, p=<value optimized out>)
at malloc.c:4795
#6 0xb7ea1bbd in *__GI___libc_free (mem=0x80625f0) at malloc.c:3739
#7 0xb7fce47d in yydestruct (yymsg=<value optimized out>, yytype=<value
optimized out>, yyvaluep=0xbfffed84, yylocationp=0xbfffe11c, ctx=0xbffff31c) at
libxlu_cfg_y.y:40
#8 0xb7fced40 in xlu__cfg_yyparse (ctx=0xbffff31c) at libxlu_cfg_y.c:1615
#9 0xb7fd127d in parse (ctx=0xbffff31c) at libxlu_cfg.c:68
#10 0xb7fd1391 in xlu_cfg_readdata (cfg=0x80626e8, data=0x80626c8
"\nbootloader_args=1,2,3\n\n", length=24) at libxlu_cfg.c:123
#11 0x0804d529 in parse_config_data (configfile_filename_report=<value
optimized out>, configfile_data=0x80626c8 "\nbootloader_args=1,2,3\n\n",
configfile_len=24, d_config=0xbffff5e0, dm_info=0xbffff670) at xl_cmdimpl.c:590
#12 0x08051268 in create_domain (dom_info=<value optimized out>) at
xl_cmdimpl.c:1545
#13 0x08059abb in main_create (argc=3, argv=0xbffffd1c) at xl_cmdimpl.c:3284
#14 0x0804c3eb in main (argc=5, argv=0xbffffd14) at xl.c:151
The inexplicable thing is that this appears to be somehow specific to
bootloader_args, which I cannot understand because the cfg parser
doesn't know that sort of thing. However:
# xl -N cr empty foo='1,2,3'
Parsing config file empty
empty:2: config parsing error near `,': syntax error, unexpected ',',
expecting NEWLINE or ';'
Failed to parse config file: Invalid argument
<exits cleanly>
# xl -N cr empty kernel='1,2,3'
Parsing config file empty
empty:2: config parsing error near `,': syntax error, unexpected ',',
expecting NEWLINE or ';'
Failed to parse config file: Invalid argument
<exits cleanly>
The behaviour is the same if I put the option in a file:
# echo bootloader_args=1,2,3 > full
# xl -N cr full
Parsing config file full
full:1: config parsing error near `,': syntax error, unexpected ',',
expecting NEWLINE or ';'
*** glibc detected *** xl: double free or corruption (fasttop):
0x08062620 ***
Ian.
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