Subject: Re: bug#13546: 24.2.92; Error(s) when sending emails

From: "Sebastien Vauban" <[email-masked]>
Date: Tue, 12 Feb 2013 19:28:30 +0100

Eli,

"Sebastien Vauban" wrote:
> "Sebastien Vauban" wrote:
>> "Sebastien Vauban" wrote:
>>> Eli Zaretskii wrote:
>>>> To catch this message:
>>>>
>>>>   warning: sys_read called when read is in progress
>>>>
>>>> please put an additional breakpoint on line 6410 of w32.c
>>
>> I went fast for the 2nd breakpoint: just launching Gnus already gives me 2
>> occurrences of them:
>>
>> Reading symbols from /cygdrive/c/Program Files (x86)/emacs-24.2.93/bin/emacs.exe...done.
>> (gdb) break fileio.c:4913
>> Breakpoint 1 at 0x106380e: file fileio.c, line 4913.
>> (gdb) break w32.c:6410
>> Breakpoint 2 at 0x108fca5: file w32.c, line 6410.
>> (gdb) continue
>> Continuing.
>> [New Thread 15276.0x3b20]
>> [New Thread 15276.0x39a8]
>> [New Thread 15276.0x5524]
>> [New Thread 15276.0x4948]
>> [New Thread 15276.0x6258]
>> [New Thread 15276.0x614c]
>> [New Thread 15276.0x1c1c]
>> [Switching to Thread 15276.0x6ea0]
>>
>> Breakpoint 2, sys_read (fd=3, buffer=0x5a28034 "", count=5) at w32.c:6410
>> (gdb) 6410      w32.c: No such file or directory.
>> p fd_info[fd]
>> $1 = {flags = 1555, hnd = 0x30c, cp = 0x1680c60}
>> (gdb) p fd
>> $2 = 3
>> (gdb) p *cp
>> $3 = {fd = 3, pid = -1, char_avail = 0x314, char_consumed = 0x318, thrd = 0x31c, hwnd = 0x0,
>>   procinfo = {hProcess = 0x0, hThread = 0x0, dwProcessId = 0, dwThreadId = 0}, status = 1,
>>   chr = 22 '\026', ovl_read = {Internal = 0, InternalHigh = 0, {{Offset = 0, OffsetHigh = 0},
>>       Pointer = 0x0}, hEvent = 0x0}, ovl_write = {Internal = 0, InternalHigh = 0, {{Offset = 0,
>>         OffsetHigh = 0}, Pointer = 0x0}, hEvent = 0x0}}
>> (gdb) continue
>> Continuing.
>> warning: sys_read called when read is in progress
>> [New Thread 15276.0x1f58]
>> [New Thread 15276.0x2844]
>> [New Thread 15276.0x6d70]
>> [New Thread 15276.0x5ccc]
>>
>> Breakpoint 2, sys_read (fd=5, buffer=0x5ae0034 "", count=5) at w32.c:6410
>> 6410    in w32.c
>> (gdb) p fd_info[fd]
>> $4 = {flags = 1555, hnd = 0x344, cp = 0x1680d10}
>> (gdb) p fd
>> $5 = 5
>> (gdb) p *cp
>> $6 = {fd = 5, pid = -1, char_avail = 0x358, char_consumed = 0x354, thrd = 0x350, hwnd = 0x0,
>>   procinfo = {hProcess = 0x0, hThread = 0x0, dwProcessId = 0, dwThreadId = 0}, status = 1,
>>   chr = 22 '\026', ovl_read = {Internal = 0, InternalHigh = 0, {{Offset = 0, OffsetHigh = 0},
>>       Pointer = 0x0}, hEvent = 0x0}, ovl_write = {Internal = 0, InternalHigh = 0, {{Offset = 0,
>>         OffsetHigh = 0}, Pointer = 0x0}, hEvent = 0x0}}
>> (gdb) continue
>> Continuing.
>> warning: sys_read called when read is in progress
>> [New Thread 15276.0x2eb8]
>
> And, when sending the email:
>
> [New Thread 15276.0x6e9c]
> [New Thread 15276.0x4890]
> [New Thread 15276.0x1878]
> [New Thread 15276.0x53bc]
> [New Thread 15276.0x5f00]
> [New Thread 15276.0x1ce4]
> [New Thread 15276.0x3b90]
> [New Thread 15276.0x12dc]
> [New Thread 15276.0x1948]
>
> [New Thread 15276.0x3b54]
> [New Thread 15276.0x41a4]
>
> Breakpoint 2, sys_read (fd=6, buffer=0x639a034 "", count=5) at w32.c:6410
> 6410    in w32.c
> (gdb)
> Continuing.
> warning: sys_read called when read is in progress
> warning: reader_thread.SetEvent failed with 6 for fd 6
> [New Thread 15276.0x2c3c]

New ones:

--8<---------------cut here---------------start------------->8---
[New Thread 15276.0x4d08]
[New Thread 15276.0x17a0]

Breakpoint 2, sys_read (fd=6, buffer=0x64b1034 "", count=5) at w32.c:6410
6410    in w32.c
(gdb)
Continuing.
warning: sys_read called when read is in progress
warning: reader_thread.SetEvent failed with 6 for fd 6
[New Thread 15276.0x6774]
warning: reader_thread.SetEvent failed with 6 for fd 3
warning: reader_thread.SetEvent failed with 6 for fd 5
[New Thread 15276.0x5b0c]
[New Thread 15276.0x1898]

Breakpoint 2, sys_read (fd=3, buffer=0x6594034 "", count=5) at w32.c:6410
6410    in w32.c
(gdb) p fd_info[fd]
$7 = {flags = 1555, hnd = 0x324, cp = 0x1680c60}
(gdb) p fd
$8 = 3
(gdb) p *cp
$9 = {fd = 3, pid = -1, char_avail = 0x318, char_consumed = 0x314, thrd = 0x31c, hwnd = 0x0,
  procinfo = {hProcess = 0x0, hThread = 0x0, dwProcessId = 0, dwThreadId = 0}, status = 1,
  chr = 22 '\026', ovl_read = {Internal = 0, InternalHigh = 0, {{Offset = 0, OffsetHigh = 0},
      Pointer = 0x0}, hEvent = 0x0}, ovl_write = {Internal = 0, InternalHigh = 0, {{Offset = 0,
        OffsetHigh = 0}, Pointer = 0x0}, hEvent = 0x0}}
(gdb) continue
Continuing.
[New Thread 15276.0x65ac]
warning: sys_read called when read is in progress
[New Thread 15276.0x2c88]

Breakpoint 2, sys_read (fd=5, buffer=0x65de034 "", count=5) at w32.c:6410
6410    in w32.c
(gdb) p fd_info[fd]
$10 = {flags = 1555, hnd = 0x3fc, cp = 0x1680d10}
(gdb) p fd
$11 = 5
(gdb) p *cp
$12 = {fd = 5, pid = -1, char_avail = 0x3f0, char_consumed = 0x29c, thrd = 0x3a4, hwnd = 0x0,
  procinfo = {hProcess = 0x0, hThread = 0x0, dwProcessId = 0, dwThreadId = 0}, status = 1,
  chr = 22 '\026', ovl_read = {Internal = 0, InternalHigh = 0, {{Offset = 0, OffsetHigh = 0},
      Pointer = 0x0}, hEvent = 0x0}, ovl_write = {Internal = 0, InternalHigh = 0, {{Offset = 0,
        OffsetHigh = 0}, Pointer = 0x0}, hEvent = 0x0}}
(gdb) continue
Continuing.
warning: sys_read called when read is in progress
[New Thread 15276.0x6478]
[New Thread 15276.0x3378]
--8<---------------cut here---------------end--------------->8---

Best regards,
  Seb

-- 
Sebastien Vauban