GHCi triggers firewall by sending unexpected packet
Sometimes when a function has been calculating heavily, for a minute or two, GHCi 6.8.1 trips the firewall by sending a packet. I would guess that this has something to do with GC. I also observed this behavior in GHCi 6.6 and
- 6.1, I'm using Sygate Personal Firewall, on Windows XP,
with ethernet (wired, not wireless) thru a router to a cable modem. Here's a typical detail from a packet.
Parent Process : E:\graphics\haskell\bin\ghci.exe
Parent Version :
Parent Description :
Parent Process ID : 0x454 (Heximal) 1108 (Decimal)
File Version :
File Description : E:\graphics\haskell\bin\ghc.exe
File Path : E:\graphics\haskell\bin\ghc.exe
Process ID : 0xC20 (Heximal) 3104 (Decimal)
Connection origin : local initiated
Protocol : Raw Ethernet
Local Address : 0.0.0.0
Local Port : 0
Remote Name :
Remote Address : 0.0.0.0
Remote Port : 0
Ethernet packet details:
Ethernet II (Packet Length: 56)
Destination: ff-ff-ff-ff-ff-ff
Source: 00-0d-87-7f-3c-6b
Type: ARP (0x0806)
Address Resolution Protocol (ARP)
Hardware type: Ethernet (0x0001)
Protocol type: IP (0x0800)
Hardware size: 6
Protocol size: 4
Opcode: Request
Sender hardware address: 00-0d-87-7f-3c-6b
Sender IP address: 192.168.1.100
Target hardware address: 00-00-00-00-00-00
Target IP address: 192.168.1.1
Binary dump of the packet:
0000: FF FF FF FF FF FF 00 0D : 87 7F 3C 6B 08 06 00 01 | ..........<k....
0010: 08 00 06 04 00 01 00 0D : 87 7F 3C 6B C0 A8 01 64 | ..........<k...d
0020: 00 00 00 00 00 00 C0 A8 : 01 01 04 38 3F 1E 50 10 | ...........8?.P.
0030: FD 63 90 FF 00 00 50 4F : | .c....PO Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.8.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |