Roger Pau Monné ee72bc1d1f xen/debug: remove usage of sbuf_{clear,finish}() on drained sbuf ... Using sbuf_clear() on a drained sbuf is explicitly prohibited, and using sbuf_finish() after printing a trace leads to a single trace being printed, as after calling sbuf_finish() further attempts to use the same sbuf will lead to a panic. While there also switch to using xen_emergency_print() instead of attempting to write directly to the hypervisor console. xen_emergency_print() can be implemented per-arch to use a different mechanism than the console hypercall (note the default implementation still uses the console hypercall). Fixes: df62b8a25f ('xen: add a handler for the debug interrupt') Sponsored by: Cloud Software Group Reviewed by: markj Differential review: https://reviews.freebsd.org/D45060		2024-05-09 12:50:08 +02:00
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debug.c	xen/debug: remove usage of sbuf_{clear,finish}() on drained sbuf	2024-05-09 12:50:08 +02:00