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Date: Wed, 3 Apr 2013 08:50:17 +0100 From: Mel Gorman <mgorman@...e.de> To: Frederic Weisbecker <fweisbec@...il.com> Cc: Ingo Molnar <mingo@...nel.org>, LKML <linux-kernel@...r.kernel.org>, SystemTap <systemtap@...rceware.org> Subject: systemtap broken by removal of register_timer_hook Commit ba6fdda4 (profiling: Remove unused timer hook) removed [un]register_timer_hook due to a lack of upstream users and a belief that there were no out-of-tree users. However, systemtap uses it and with that patch applied, some stap scripts fail with WARNING: "unregister_timer_hook" [/tmp/stapJoLMxD/stap_de6e19eaf7bd94629aba9d6f56cdfca5_8156.ko] undefined! WARNING: "register_timer_hook" [/tmp/stapJoLMxD/stap_de6e19eaf7bd94629aba9d6f56cdfca5_8156.ko] undefined! Error inserting module '/tmp/stapJoLMxD/stap_de6e19eaf7bd94629aba9d6f56cdfca5_8156.ko': Unknown symbol in module WARNING: /usr/bin/staprun exited with status: 1 Pass 5: run failed. Try again with another '--vp 00001' option. Unexpected exit of STAP script at ./watch-dstate.pl line 305. Can the patch be reverted or at least put a warning in place about it being obsoleted until the systemtap folks come up with a replacement? Systemtap folk, has his problem already been addressed? -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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