commit c29d9792607e67ed8a3f6e9db0d96836d885a8c5 upstream. The space allowed for new attributes can be too small if existing header information is large. That can happen, for example, if there are very many CPUs, due to having an event ID per CPU per event being stored in the header information. Fix by adding the existing header.data_offset. Also increase the extra space allowed to 8KiB and align to a 4KiB boundary for neatness. Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Link: http://lore.kernel.org/lkml/20211125071457.2066863-1-adrian.hunter@xxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> [Adrian: Backport to v5.15] Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> --- tools/perf/builtin-inject.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 6ad191e731fc..d454f5a7af93 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -819,7 +819,7 @@ static int __cmd_inject(struct perf_inject *inject) inject->tool.ordered_events = true; inject->tool.ordering_requires_timestamps = true; /* Allow space in the header for new attributes */ - output_data_offset = 4096; + output_data_offset = roundup(8192 + session->header.data_offset, 4096); if (inject->strip) strip_init(inject); } -- 2.25.1
