[asterisk-bugs] [JIRA] (DAHLIN-314) wcb4xxp: kernel oopses when debug st state is enabled

[Gerald Schnabel (JIRA)]

Gerald Schnabel created DAHLIN-314:
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             Summary: wcb4xxp: kernel oopses when debug st state is enabled
                 Key: DAHLIN-314
                 URL: https://issues.asterisk.org/jira/browse/DAHLIN-314
             Project: DAHDI-Linux
          Issue Type: Bug
      Security Level: None
          Components: wcb4xxp
    Affects Versions: 2.6.1
         Environment: CentOS 6.3, kernel 2.6.32-279.el6.x86_64, Digium B410P
            Reporter: Gerald Schnabel
            Assignee: Russ Meyerriecks
            Severity: Minor
         Attachments: messages.txt

When wcb4xxp is loaded with debug st state bit set (e.g. module option debug=32) kernel oopses appear from time to time, see attached [^messages.txt].

Changing the kmalloc() flag _GFP_KERNEL_ to _GFP_ATOMIC_ in function _hfc_decode_st_state()_ seems to make the oopses disappear.


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