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Re: [PATCH 01/20] migration: Dump sub-cmd name in loadvm_process_command
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH 01/20] migration: Dump sub-cmd name in loadvm_process_command tp |
Date: |
Wed, 16 Feb 2022 15:42:54 +0000 |
User-agent: |
Mutt/2.1.5 (2021-12-30) |
* Peter Xu (peterx@redhat.com) wrote:
> It'll be easier to read the name rather than index of sub-cmd when debugging.
>
> Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> ---
> migration/savevm.c | 3 ++-
> migration/trace-events | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/migration/savevm.c b/migration/savevm.c
> index 1599b02fbc..7bb65e1d61 100644
> --- a/migration/savevm.c
> +++ b/migration/savevm.c
> @@ -2273,12 +2273,13 @@ static int loadvm_process_command(QEMUFile *f)
> return qemu_file_get_error(f);
> }
>
> - trace_loadvm_process_command(cmd, len);
> if (cmd >= MIG_CMD_MAX || cmd == MIG_CMD_INVALID) {
> error_report("MIG_CMD 0x%x unknown (len 0x%x)", cmd, len);
> return -EINVAL;
> }
>
> + trace_loadvm_process_command(mig_cmd_args[cmd].name, len);
> +
> if (mig_cmd_args[cmd].len != -1 && mig_cmd_args[cmd].len != len) {
> error_report("%s received with bad length - expecting %zu, got %d",
> mig_cmd_args[cmd].name,
> diff --git a/migration/trace-events b/migration/trace-events
> index 48aa7b10ee..123cfe79d7 100644
> --- a/migration/trace-events
> +++ b/migration/trace-events
> @@ -22,7 +22,7 @@ loadvm_postcopy_handle_resume(void) ""
> loadvm_postcopy_ram_handle_discard(void) ""
> loadvm_postcopy_ram_handle_discard_end(void) ""
> loadvm_postcopy_ram_handle_discard_header(const char *ramid, uint16_t len)
> "%s: %ud"
> -loadvm_process_command(uint16_t com, uint16_t len) "com=0x%x len=%d"
> +loadvm_process_command(const char *s, uint16_t len) "com=%s len=%d"
> loadvm_process_command_ping(uint32_t val) "0x%x"
> postcopy_ram_listen_thread_exit(void) ""
> postcopy_ram_listen_thread_start(void) ""
> --
> 2.32.0
>
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
- [PATCH 00/20] migration: Postcopy Preemption, Peter Xu, 2022/02/16
- [PATCH 01/20] migration: Dump sub-cmd name in loadvm_process_command tp, Peter Xu, 2022/02/16
- Re: [PATCH 01/20] migration: Dump sub-cmd name in loadvm_process_command tp,
Dr. David Alan Gilbert <=
- [PATCH 03/20] migration: Tracepoint change in postcopy-run bottom half, Peter Xu, 2022/02/16
- [PATCH 04/20] migration: Introduce postcopy channels on dest node, Peter Xu, 2022/02/16
- [PATCH 02/20] migration: Finer grained tracepoints for POSTCOPY_LISTEN, Peter Xu, 2022/02/16
- [PATCH 05/20] migration: Dump ramblock and offset too when non-same-page detected, Peter Xu, 2022/02/16
- [PATCH 06/20] migration: Add postcopy_thread_create(), Peter Xu, 2022/02/16
- [PATCH 07/20] migration: Move static var in ram_block_from_stream() into global, Peter Xu, 2022/02/16