Re: [Nano-devel] misbehavior while creating a new file (was: 2.2.2 pre-release)

[Chris Allegretta]

Hmm, how about after r4474?

On Wed, Jan 13, 2010 at 1:55 PM, Chris Allegretta <address@hidden> wrote:
> Yep I have it now, just need to make a fix that works with this and
> the previous file backup issue.  Thanks for the additional info Mike.
>
> On Wed, Jan 13, 2010 at 1:44 PM, Mike Frysinger <address@hidden> wrote:
>> On Wednesday 13 January 2010 11:25:54 Mike Frysinger wrote:
>>> On Wednesday 13 January 2010 11:03:46 Chris Allegretta wrote:
>>> > Interesting, that may be related to the fix in r4467.  Having a little
>>> > trouble reproducing right off the bat, is it easily reproducible with
>>> > a certain set of steps?
>>>
>>> nano file-that-doesnt-exist
>>> ctrl+o (to save file)
>>> ctrl+o (to save file)
>>>
>>> ive only had it crash once so far, but i get the incorrect modified notice
>>> every time
>>
>> ok, here's how to make it crash every time (needs multibuffer):
>> rm -f doesnt-exist
>>> exists
>> nano doesnt-exist exists
>> ctrl+o # save the new "doesnt-exist" file
>> ctrl+x # try to close the new "doesnt-exist" file and switch to "exists"
>> segfault
>>
>> here's a backtrace with -O0
>> (gdb) bt f
>> #0  0x00007f34425ae1b5 in *__GI_raise (sig=<value optimized out>) at
>> ../nptl/sysdeps/unix/sysv/linux/raise.c:64
>>        pid = <value optimized out>
>>        selftid = <value optimized out>
>> #1  0x00007f34425af5e0 in *__GI_abort () at abort.c:92
>>        act = {
>>          __sigaction_handler = {
>>            sa_handler = 0x7fffcfdd48c0,
>>            sa_sigaction = 0x7fffcfdd48c0
>>          },
>>          sa_mask = {
>>            __val = {0x7fffcfdd4980, 0x7fffcfdd7205, 0xa, 0x7f344269b18d, 0x3,
>> 0x7fffcfdd498a, 0x6, 0x7f344269b191, 0x2, 0x7fffcfdd497e, 0x2, 
>> 0x7f3442698f48,
>> 0x1, 0x7f344269b18d, 0x3, 0x7fffcfdd4984}
>>          },
>>          sa_flags = 0xc,
>>          sa_restorer = 0x7f344269b191
>>        }
>>        sigs = {
>>          __val = {0x20, 0x0 <repeats 15 times>}
>>        }
>> #2  0x00007f34425e8e77 in __libc_message (do_abort=<value optimized out>,
>> fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:186
>>        ap = {{
>>            gp_offset = 0x28,
>>            fp_offset = 0x30,
>>            overflow_arg_area = 0x7fffcfdd5300,
>>            reg_save_area = 0x7fffcfdd5210
>>          }}
>>        ap_copy = {{
>>            gp_offset = 0x10,
>>            fp_offset = 0x30,
>>            overflow_arg_area = 0x7fffcfdd5300,
>>            reg_save_area = 0x7fffcfdd5210
>>          }}
>>        fd = 0x3
>>        on_2 = <value optimized out>
>>        list = <value optimized out>
>>        nlist = 0x0
>>        cp = <value optimized out>
>>        written = 0x0
>> #3  0x00007f34425ee406 in malloc_printerr (action=0x3, str=0x7f344269cb18
>> "munmap_chunk(): invalid pointer", ptr=<value optimized out>) at 
>> malloc.c:6264
>>        buf = "00007fffcfdd5100"
>>        cp = 0x7f34426932c0 "0123456789abcdefghijklmnopqrstuvwxyz"
>> #4  0x0000000000413192 in delete_opennode (fileptr=0x101d250) at nano.c:561
>> No locals.
>> #5  0x0000000000413148 in unlink_opennode (fileptr=0x101d250) at nano.c:549
>> No locals.
>> #6  0x0000000000408126 in close_buffer () at files.c:286
>> No locals.
>> #7  0x0000000000413e42 in do_exit () at nano.c:1054
>>        i = 0x0
>> #8  0x000000000040f127 in iso_me_harder_funcmap (func=0x12) at global.c:1242
>> No locals.
>> #9  0x00000000004149eb in do_input (meta_key=0x7fffcfdd545f,
>> func_key=0x7fffcfdd545e, s_or_t=0x7fffcfdd545d, ran_func=0x7fffcfdd545c,
>> finished=0x7fffcfdd545b, allow_funcs=0x1) at nano.c:1626
>>        f = 0x100a0b0
>>        input = 0x18
>>        kbinput = 0x0
>>        kbinput_len = 0x0
>>        cut_copy = 0x0
>>        s = 0x100c6d0
>>        have_shortcut = 0x1
>> #10 0x00000000004161d5 in main (argc=0x3, argv=0x7fffcfdd5ab8) at nano.c:2663
>>        func_key = 0x0
>>        s_or_t = 0x0
>>        ran_func = 0x1
>>        finished = 0x0
>>        meta_key = 0x0
>>        optchr = 0xffffffff
>>        startline = 0x1
>>        startcol = 0x1
>>        fill_used = 0x0
>>        old_multibuffer = 0x1
>>        long_options = {{
>>            name = 0x42c490 "help",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x68
>>          }, {
>>            name = 0x42c495 "boldtext",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x44
>>          }, {
>>            name = 0x42c49e "multibuffer",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x46
>>          }, {
>>            name = 0x42c4aa "ignorercfiles",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x49
>>          }, {
>>            name = 0x42c4b8 "rebindkeypad",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x4b
>>          }, {
>>            name = 0x42c4c5 "nonewlines",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x4c
>>          }, {
>>            name = 0x42c4d0 "morespace",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x4f
>>          }, {
>>            name = 0x42c4da "restricted",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x52
>>          }, {
>>            name = 0x42c4e5 "tabsize",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x54
>>          }, {
>>            name = 0x42c4ed "version",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x56
>>          }, {
>>            name = 0x42c4f5 "syntax",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x59
>>          }, {
>>            name = 0x42c4fc "const",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x63
>>          }, {
>>            name = 0x42c502 "rebinddelete",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x64
>>          }, {
>>            name = 0x42c50f "nofollow",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x6c
>>          }, {
>>            name = 0x42c518 "mouse",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x6d
>>          }, {
>>            name = 0x42c51e "operatingdir",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x6f
>>          }, {
>>            name = 0x42c52b "preserve",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x70
>>          }, {
>>            name = 0x42c534 "quiet",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x71
>>          }, {
>>            name = 0x42c53a "fill",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x72
>>          }, {
>>            name = 0x42c53f "speller",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x73
>>          }, {
>>            name = 0x42c547 "tempfile",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x74
>>          }, {
>>            name = 0x42c550 "view",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x76
>>          }, {
>>            name = 0x42c555 "nowrap",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x77
>>          }, {
>>            name = 0x42c55c "nohelp",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x78
>>          }, {
>>            name = 0x42c563 "suspend",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x7a
>>          }, {
>>            name = 0x42c56b "smarthome",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x41
>>          }, {
>>            name = 0x42c575 "backup",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x42
>>          }, {
>>            name = 0x42c57c "backupdir",
>>            has_arg = 0x1,
>>            flag = 0x0,
>>            val = 0x43
>>          }, {
>>            name = 0x42c586 "tabstospaces",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x45
>>          }, {
>>            name = 0x42c593 "historylog",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x48
>>          }, {
>>            name = 0x42c59e "noconvert",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x4e
>>          }, {
>>            name = 0x42c5a8 "smooth",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x53
>>          }, {
>>            name = 0x42c5af "quickblank",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x55
>>          }, {
>>            name = 0x42c5ba "undo",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x75
>>          }, {
>>            name = 0x42c5bf "wordbounds",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x57
>>          }, {
>>            name = 0x42c5ca "autoindent",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x69
>>          }, {
>>            name = 0x42c5d5 "cut",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x6b
>>          }, {
>>            name = 0x42c5d9 "softwrap",
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x24
>>          }, {
>>            name = 0x0,
>>            has_arg = 0x0,
>>            flag = 0x0,
>>            val = 0x0
>>          }}
>> -mike
>>
>