From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: David Miller <davem@davemloft.net>, Jiri Olsa <jolsa@kernel.org>,
Kan Liang <kan.liang@intel.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.14 12/19] perf cpu_map: Align cpu map synthesized events properly.
Date: Tue, 30 Oct 2018 09:28:17 -0400 [thread overview]
Message-ID: <20181030132824.218056-12-sashal@kernel.org> (raw)
In-Reply-To: <20181030132824.218056-1-sashal@kernel.org>
From: David Miller <davem@davemloft.net>
[ Upstream commit 0ed149cf5239cc6e7e65bf00f769e8f1e91076c0 ]
The size of the resulting cpu map can be smaller than a multiple of
sizeof(u64), resulting in SIGBUS on cpus like Sparc as the next event
will not be aligned properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Fixes: 6c872901af07 ("perf cpu_map: Add cpu_map event synthesize function")
Link: http://lkml.kernel.org/r/20181011.224655.716771175766946817.davem@davemloft.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/perf/util/event.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index fc690fecbfd6..a19e840db54a 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -951,6 +951,7 @@ void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max
}
*size += sizeof(struct cpu_map_data);
+ *size = PERF_ALIGN(*size, sizeof(u64));
return zalloc(*size);
}
--
2.17.1
next prev parent reply other threads:[~2018-10-30 13:29 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-30 13:28 [PATCH AUTOSEL 4.14 01/19] bpf: do not blindly change rlimit in reuseport net selftest Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 02/19] Revert "perf tools: Fix PMU term format max value calculation" Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 03/19] net/mlx5: Take only bit 24-26 of wqe.pftype_wq for page fault type Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 04/19] xfrm: policy: use hlist rcu variants on insert Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 05/19] perf vendor events intel: Fix wrong filter_band* values for uncore events Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 06/19] sparc: Fix single-pcr perf event counter management Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 07/19] sparc: Throttle perf events properly Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 08/19] sparc64: Make proc_id signed Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 09/19] net: fec: don't dump RX FIFO register when not available Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 10/19] sched/fair: Fix the min_vruntime update logic in dequeue_entity() Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 11/19] perf tools: Fix use of alternatives to find JDIR Sasha Levin
2018-10-30 13:28 ` Sasha Levin [this message]
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 13/19] x86/fpu: Remove second definition of fpu in __fpu__restore_sig() Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 14/19] net: qla3xxx: Remove overflowing shift statement Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 15/19] virtio_net: avoid using netif_tx_disable() for serializing tx routine Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 16/19] r8169: fix NAPI handling under high load Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 17/19] selftests: ftrace: Add synthetic event syntax testcase Sasha Levin
2018-10-30 14:58 ` Steven Rostedt
2018-10-30 18:21 ` Sasha Levin
2018-11-01 17:34 ` Masami Hiramatsu
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 18/19] net: fix pskb_trim_rcsum_slow() with odd trim offset Sasha Levin
2018-10-30 13:28 ` [PATCH AUTOSEL 4.14 19/19] i2c: rcar: cleanup DMA for all kinds of failure Sasha Levin
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