On 2020-08-29 06:29, Warner Losh wrote:
+#define DEVCTL_BUFFER (1024 - sizeof(void *))
  struct dev_event_info {
-       char *dei_data;
        STAILQ_ENTRY(dev_event_info) dei_link;
+       char dei_data[DEVCTL_BUFFER];
  };

Maybe add:

CTASSERT(sizeof(struct dev_event_info) == 1024);

Not sure if STAILQ's can have some debug fields in them.

--HPS
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