I'm using VIM 8.0 and set the option: "set cscopequickfix=s-,c-,d-,i-,t-,e-"
vim will prompt "E484: Can't open file /tmp/vxxxxx/n" occasionally if I'm not
root user.
when set above option, vim will generate a temp directory under /tmp, I found
the temp direcoty was deleted every time when the fault was occurred.
after checking source code, the suspecious place is in function: vim_tempname
if (vim_tempdir != NULL)
{
/* There is no need to check if the file exists, because we own the
* directory and nobody else creates a file in it. */
sprintf((char *)itmp, "%s%ld", vim_tempdir, temp_count++);
return vim_strsave(itmp);
}
if the vim_tempdir is deleted by unknown operation/process, then vim will fault
due to it not checking this temp directory before writing it, maybe we need to
check vim_tempdir here, if it's not accessable, we build another temp directory.
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