I encountered this error a few times. Iqfeed usually ran for a while (more than 20 - 30 minutes) and then crashed.

Unhandled exception: 0x40000015 in 64-bit code (0x000000007b01135e).
Register dump:
rip:000000007b01135e rsp:000000000340cf00 rbp:00000001400f5898 eflags:00000206 ( - -- I - -P- )
rax:000000000340cf40 rbx:00000001400f2940 rcx:000000000340cf20 rdx:0000000000000001
rsi:000000000340d028 rdi:000000000340cf48 r8:0000000000000001 r9:000000000340d020 r10:0000000000000008
r11:0000000000000246 r12:0000000000000008 r13:0000000000000001 r14:000000000340d150 r15:0000000000000080
Stack dump:
0x000000000340cf00: 000000000340cf20 00000001400f5898
0x000000000340cf10: 00000000709d9260 0000000000000001
0x000000000340cf20: 0000000140000015 0000000000000000
0x000000000340cf30: 000000007b01135e 0000000000000001
0x000000000340cf40: 00000001400f2940 0000000000000000
0x000000000340cf50: 000000000340d008 0000000000000000
0x000000000340cf60: 0000000000000000 00000000709d9260
0x000000000340cf70: 000000000340cff0 00000001400f2658
0x000000000340cf80: 0000000000000008 000000014007bf38
0x000000000340cf90: 0000000000000000 0000000000000000
0x000000000340cfa0: 0000000000000000 0000000000000000
0x000000000340cfb0: 000000000340cff0 0000000000000000
Backtrace:
=>0 0x000000007b01135e EntryPoint+0xffffffffffffffff() in kernelbase (0x00000001400f5898)
1 0x000000014009480a in iqconnect (+0x94809) (0x00000001400f5898)
2 0x00000001400a91e9 in iqconnect (+0xa91e8) (0x00000001400f5898)
3 0x00000001400a866e in iqconnect (+0xa866d) (0x00000001400f5898)
4 0x00000001400ba91f in iqconnect (+0xba91e) (0x00000001400f5898)
5 0x00000001400aeeff in iqconnect (+0xaeefe) (0x0000000000000000)
6 0x00000001400ad6af in iqconnect (+0xad6ae) (0x0000000000000000)
7 0x000000014009e84f in iqconnect (+0x9e84e) (0x0000000000000000)
8 0x0000000140092223 in iqconnect (+0x92222) (0x0000000000000000)
9 0x00000001400205c1 in iqconnect (+0x205c0) (0x0000000000000000)
10 0x00000001400232b7 in iqconnect (+0x232b6) (0x0000000000000000)
11 0x00000001400230ca in iqconnect (+0x230c9) (0x0000000000000000)
12 0x0000000140022b7d in iqconnect (+0x22b7c) (0x0000000000000000)
13 0x000000007b62d189 EntryPoint+0xffffffffffffffff() in kernel32 (0x0000000000000000)
14 0x000000007bc5e683 EntryPoint+0xffffffffffffffff() in ntdll (0x0000000000000000)
0x000000007b01135e EntryPoint+0xffffffffffffffff in kernelbase: nop
Modules:
Module Address Debug info Name (48 modules)
PE 220000- 23e000 Deferred lz4
PE 240000- 25a000 Deferred zlib1
PE 260000- 7ba000 Deferred mfc140
PE 7c0000- f6a000 Deferred user32
PE f70000- 1647000 Deferred gdi32
PE 1650000- 188b000 Deferred setupapi
PE 1890000- 1bbf000 Deferred gdiplus
PE 3640000- 3b92000 Deferred comctl32
PE 61540000- 61663000 Deferred advapi32
PE 61d00000- 61d10000 Deferred api-ms-win-crt-convert-l1-1-0
PE 61d80000- 61d91000 Deferred api-ms-win-crt-math-l1-1-0
PE 62100000- 6219d000 Deferred msvcp140
PE 62dc0000- 6306b000 Deferred rpcrt4
PE 63280000- 632a0000 Deferred version
PE 63540000- 63550000 Deferred api-ms-win-crt-runtime-l1-1-0
PE 639c0000- 63a12000 Deferred shcore
PE 64840000- 6498e000 Deferred shlwapi
PE 64cc0000- 651cd000 Deferred oleaut32
PE 65b40000- 65b4f000 Deferred api-ms-win-crt-filesystem-l1-1-0
PE 66400000- 6640f000 Deferred api-ms-win-crt-locale-l1-1-0
PE 67140000- 67492000 Deferred msvcr120
PE 67e80000- 67ecc000 Deferred jsproxy
PE 68300000- 68490000 Deferred combase
PE 684c0000- 684d8000 Deferred concrt140
PE 68500000- 685b1000 Deferred uxtheme
PE 69200000- 6920c000 Deferred vcruntime140_1
PE 69400000- 69543000 Deferred winhttp
PE 6a200000- 6a7b8000 Deferred ole32
PE 6b5c0000- 6b5d0000 Deferred api-ms-win-crt-stdio-l1-1-0
PE 6ba00000- 6bac9000 Deferred sechost
PE 6c800000- 6c80f000 Deferred api-ms-win-crt-heap-l1-1-0
PE 6cd40000- 6cd4e000 Deferred api-ms-win-crt-time-l1-1-0
PE 6eb40000- 6eb4f000 Deferred api-ms-win-crt-utility-l1-1-0
PE 6f400000- 6f411000 Deferred api-ms-win-crt-multibyte-l1-1-0
PE 6f880000- 6fb3d000 Deferred dbghelp
PE 6fd00000- 6fd10000 Deferred api-ms-win-crt-string-l1-1-0
PE 70040000- 70057000 Deferred vcruntime140
PE 70940000- 70ca6000 Deferred ucrtbase
PE 71000000- 71058000 Deferred imm32
PE 7b000000- 7b3d1000 Dwarf kernelbase
PE 7b600000- 7b96c000 Dwarf kernel32
PE 7bc00000- 7bf88000 Dwarf ntdll
PE 140000000- 140192000 Export iqconnect
PE 180000000- 18001e000 Deferred fmt
PE 7fd6aeca0000- 7fd6aeca4000 Deferred winex11
PE 7fd6af000000- 7fd6af8d7000 Deferred shell32
PE 7fd6afa80000- 7fd6afa86000 Deferred ws2_32
PE 7fd6afbc0000- 7fd6afbc4000 Deferred iphlpapi
Threads:
process tid prio (all id:s are in hex)
00000038 services.exe
0000003c 0
00000040 0
0000004c 0
00000070 0
00000088 0
000000b0 0
000000ec 0
00000044 winedevice.exe
00000048 0
00000054 0
00000058 0
0000005c 0
00000060 plugplay.exe
00000064 0
00000074 0
00000078 0
0000007c 0
00000098 0
00000068 explorer.exe
0000006c 0
000000d4 0
000000d8 0
00000080 winedevice.exe
00000084 0
0000008c 0
00000090 0
00000094 0
000000a0 0
000000a4 0
000000a8 svchost.exe
000000ac 0
000000b4 0
000000b8 0
000000bc (D) C:\Program Files\DTN\IQFeed\iqconnect.exe
000000c0 0
00000114 0
00000118 0 <==
0000011c 0
00000120 0
000006d4 0
000000c4 conhost.exe
000000c8 0
000000e4 rpcss.exe
000000e8 0
000000f4 0
000000f8 0
000000fc 0
00000100 0
00000104 0
System information:
Wine build: wine-6.0.2
Platform: x86_64
Version: Windows 7
Host system: Linux
Host version: 5.4.0-91-generic

Hmm. I haven't run into this problem on my system (Wine 6.21 on Fedora 34). However, I'm still having issues with iqconnect failing to shut down after the last client closes, so I'm killing it explicitly and restarting early each day. Do you have any unexpected iqconnect, explorer, etc. processes lying around?

leijin168, is this a custom app that you're using with IQFeed? If so, what are you trying to do with it? Any specific thing you do that leads to the error message?

Also...

Can you tell us what version of IQFeed you're running? Is this a recent upgrade, and if so, do you know what version you were using previously?

Do you have a crashdump (.mdmp file) from the crash? If so, please provide, either here or you can email it to us at support@iqfeed.net.

If you can get us an IQFeed logfile from the crash, that would also be helpful to our developers. If you're running in a windowed environment in linux, you can use the IQFeed diagnostics app or windows explorer to locate the logfile, otherwise find the Document's folder wherever the C: drive is located.

---

Trading Markets Customer Service
800-779-7299 (DTNIQ & IQFEED)
www.dtn.com/trading | http://www.iqfeed.net

According to IQFeed Diagnosis, the version is 6.2.0.23. I believe I downloaded recently.

I am writing a custom python script to use historical data APIs to download end of day and minute data.

I didn't find a crashdump file, is there some setting I need to enable in order to catch a core dump?

where is the logfile saved?

The .MDMP file should be in the same folder as the .TXT file in your original post..

It may also be helpful to retrieve the IQConnectlog.txt file. To do this, open the Diagnostics app, and go to the Logging tab. Turn on "all errors" and "debug." The file will be called IQConnectlog.txt and will be saved in the folder listed on that dialog, which is probably .wine/drive_c\Users\[Windows Username]\Documents, in the typical Wine hierarchy.

You may send any logfiles to the support or developer support address and we will review it.

---

Sincerely,
Gary Stephen
DTN IQFeed Implementation Support Specialist