On Fri, May 14, 2021 at 04:44:22PM -0500, Nathan Lynch wrote:
hvterm_raw_put_chars() calls hvc_put_chars(), which may return -EAGAIN
when the underlying hcall returns a "busy" status, but udbg_hvc_putc()
doesn't handle this. When using xmon on a PowerVM guest, this can
result in incomplete or garbled output when printing relatively large
amounts of data quickly, such as when dumping the kernel log buffer.
Call again on -EAGAIN.
Signed-off-by: Nathan Lynch <redacted>
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drivers/tty/hvc/hvc_vio.c | 2 +-
Subject line does not match up with this file name.
Don't you want "tty" and "hvc" in there somewhere?
thanks,
greg k-h