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Deep Security kernel module gsch interrupted hooking log entries on /var/log/messages

    • Updated:
    • 19 Aug 2020
    • Product/Version:
    • Deep Security 10.0
    • Deep Security 11.0
    • Deep Security 12.0
    • Deep Security 12.5
    • Deep Security 20.0
    • Platform:
    • Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8
Summary

There are entries on /var/log/messages log showing gsch interrupted hooking.

Details
Public

Entries on /var/log/messages showing gsch interrupted hooking are normal logging for gsch. It does not mean it is cancelling/interrupting any process. Below is a sample log snippet:

The gsch kernel module is a trap where all process will enter gsch hooks then wait when they invoke system calls. When those waiting processes get any SIGNAL, interruption from kernel happens.

For instance, when you launch an executable and wait for malware scan, initiating "Ctrl + C" command will trigger a signal and will interrupt the executable.

Below is the operation of gsch in this scenario:

  • interrupted & wait (timeout=1000)

    The waiting process get signals, interrupted. Do a wait with timeout again.

  • interrupted & wait: done

    Got a result from DSA, the second wait is done.

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Rating:
Category:
Troubleshoot
Solution Id:
000262458
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