[IGN-13824] Gateway Crash When Browsing Siemens Symbolic PLC

Hi all,

We have a Siemens S7-1500 communicating using the new driver.
There are a handfull of tags communicating successfully with the driver.
When we browse the device to add a tag from scratch (I.e. Add tags popup, hit refresh so no folders are open), during drill down of the folders, the whole gateway crashes.

Looking at the logs:

INFO   | jvm 1    | 2025/07/31 14:47:30 | # A fatal error has been detected by the Java Runtime Environment:
INFO   | jvm 1    | 2025/07/31 14:47:30 | #
INFO   | jvm 1    | 2025/07/31 14:47:30 | #  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff804705982, pid=5260, tid=7048
INFO   | jvm 1    | 2025/07/31 14:47:30 | #
INFO   | jvm 1    | 2025/07/31 14:47:30 | # JRE version: OpenJDK Runtime Environment Zulu17.58+22-SA (17.0.15+6) (build 17.0.15+6-LTS)
INFO   | jvm 1    | 2025/07/31 14:47:30 | # Java VM: OpenJDK 64-Bit Server VM Zulu17.58+22-SA (17.0.15+6-LTS, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
INFO   | jvm 1    | 2025/07/31 14:47:30 | # Problematic frame:
INFO   | jvm 1    | 2025/07/31 14:47:30 | # C  [AGLink40_x64.dll+0x235982]
INFO   | jvm 1    | 2025/07/31 14:47:30 | #
INFO   | jvm 1    | 2025/07/31 14:47:30 | # No core dump will be written. Minidumps are not enabled by default on client versions of Windows
INFO   | jvm 1    | 2025/07/31 14:47:30 | #
INFO   | jvm 1    | 2025/07/31 14:47:30 | # An error report file with more information is saved as:
INFO   | jvm 1    | 2025/07/31 14:47:30 | # C:\Program Files\Inductive Automation\Ignition\hs_err_pid5260.log
INFO   | jvm 1    | 2025/07/31 14:47:30 | #

I have the hs_err_pid5260.log but am unsure the best way to share it.

The error is quite repeatable, so can provide any additional information /logging as required! :slight_smile:
Its always the frame [AGLink40_x64.dll+0x235982] when it crashes.

This may be vaguely related to [null, Bad_NotConnected(“Communication with the data source is defined, but not established...] as we're also having this issue, however with it crashing the gateway I didn't want to hijack the thread :smile:

Thanks!
Alex

2 Likes

Thanks for reaching out!

You can share any relevant logs to this Dropbox link, maybe in a zip named similar to your forum user name, so that I can more easily keep things apart.

Some logs that might be helpful are the siemens related loggers in the gateway, but they'll need to be set to Debug to catch anything useful.

Any info about the specific of the folder (and its contents) you were trying to drill into would also be very helpful. It sounds likely that there is an issue when trying to browse a specific node in the problematic folder. If you can share what it looks like on the PLC, that would be useful.

2 Likes

Thanks very much!
I've uploaded what I can, and included a few notes to try and help :blush:

2 Likes

Thanks Alex! I suspect this will be enough for me to reproduce the issue. I'll reach back out once I have anything.

1 Like

No luck yet, just sent you a DM for a little more info.

EDIT: I think I've found the issue, working on a fix. Thanks for the help on this one, @Alex_Leech

5 Likes

Hello, same problem. Sometimes I'm able to browse the namespace, someother the same folder cause a crash and a gateway reboot. Seems that keeping the tag browser opened in the Designer during and after a gateway restart, after a while the gateway crash again. I can provide you the public PLC address ( S1500 ) to try and test if needed. Contact me PM.

1 Like

Thanks for the help identifying this issue. A fix for this has been merged and will be available in the next beta release.

3 Likes