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25 lines
609 B
Markdown
25 lines
609 B
Markdown
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# Collect crash dump
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When a Qualcomm target crashes or is forced into crash dump mode, the
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bootloader re-enumerates the device over USB with Product ID `900e` and
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offers memory segments for collection via the Sahara protocol.
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A kernel crash can be triggered on the target with:
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```bash
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echo c > /proc/sysrq-trigger
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```
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Use `qdl ramdump` on the host to collect the dump:
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```bash
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qdl ramdump -o ./ramdump
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```
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Each offered memory segment is written to a separate file under
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`./ramdump`. To collect only specific segments, pass a comma-separated
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filter:
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```bash
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qdl ramdump -o ./ramdump OCIMEM,CODERAM
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```
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