From: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
To: Soeren Sandmann <sandmann-SSQ8kajmRZpknbxzx/v8hQ@public.gmane.org>
Cc: "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Kernel Testers List
<kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>,
Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>,
Peter Zijlstra
<a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Subject: Re: [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1
Date: Mon, 17 Nov 2008 17:24:31 +0100 [thread overview]
Message-ID: <20081117162431.GG12081@elte.hu> (raw)
In-Reply-To: <ye8k5b2eetz.fsf-DjOboVYaZglJJDyRqOZFmmSdvHPH+/yF@public.gmane.org>
* Soeren Sandmann <sandmann-SSQ8kajmRZpknbxzx/v8hQ@public.gmane.org> wrote:
> There are no ABI guarantees for the sysprof tracer at this point,
> given that it is in debugfs [...]
to avoid situations like this, it would be nice to print out the
format string itself in the trace header, in printf format string
style. That way if there's a trivial expansion in trace format, it can
be detected (and even followed) by user-space - without some ugly
version based API.
Ingo
next prev parent reply other threads:[~2008-11-17 16:24 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-16 16:24 2.6.28-rc5: Reported regressions from 2.6.27 Rafael J. Wysocki
2008-11-16 16:24 ` [Bug #11822] ACPI Warning (nspredef-0858): _SB_.PCI0.LPC_.EC__.BAT0._BIF: Return Package type mismatch at index 9 - found Buffer, expected String [20080926] Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11875] radeonfb lockup in .28-rc (bisected) Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11858] Timeout regression introduced by 242f9dcb8ba6f68fcd217a119a7648a4f69290e9 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11849] default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems) Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11899] sometime boot failed on T61 laptop Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11903] regression: vmalloc easily fail Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11898] mke2fs hang on AIC79 device Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11911] new PCMCIA device instance after resume - orinoco can't download firmware Rafael J. Wysocki
2008-11-16 18:38 ` Andrey Borzenkov
2008-11-16 16:35 ` [Bug #11905] lots of extra timer interrupts costing 2W Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11906] 2.6.28-rc2 seems to fail at powering down the monitor when it should Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11947] 2.6.28-rc VC switching with Intel graphics broken Rafael J. Wysocki
2008-11-17 16:40 ` Romano Giannetti (lists)
2008-11-16 16:35 ` [Bug #11913] USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free? Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11925] cdrom: missing compat ioctls Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11954] sysprof tracer ABI regression in 2.6.28rc1 Rafael J. Wysocki
2008-11-17 12:07 ` Soeren Sandmann
[not found] ` <ye8k5b2eetz.fsf-DjOboVYaZglJJDyRqOZFmmSdvHPH+/yF@public.gmane.org>
2008-11-17 16:24 ` Ingo Molnar [this message]
[not found] ` <20081117162431.GG12081-X9Un+BFzKDI@public.gmane.org>
2008-11-18 12:17 ` Soeren Sandmann
2008-11-16 16:35 ` [Bug #11958] [2.6.27.x => 2.6.28-rc3] Xorg crash with xf86MapVidMem error Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11970] gettimeofday return a old time in mmbench Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11965] regression introduced by - timers: fix itimer/many thread hang Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11989] Suspend failure on NForce4-based boards due to chanes in stop_machine Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #11982] Fan level 7 after resume wit 2.6.28-rc3 Rafael J. Wysocki
2008-11-17 21:03 ` Tino Keitel
2008-11-16 16:35 ` [Bug #11996] Tracing framework regression in 2.6.28-rc3 Rafael J. Wysocki
2008-11-16 22:35 ` Pekka Paalanen
2008-11-16 22:44 ` Steven Rostedt
[not found] ` <20081117003531.4c8b5679-cxYvVS3buNOdIgDiPM52R8c4bpwCjbIv@public.gmane.org>
2008-11-17 9:36 ` Ingo Molnar
2008-11-16 16:35 ` [Bug #12019] Major increase in the number of wakeups from C3 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12020] scsi_times_out NULL pointer dereference Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12040] iwlagn driver segfault in 2.6.28-rc3 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12031] DRM enabled kernel hangs hard on resume on x60 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12028] i915 DRM is broken in 2.6.28-rc4 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12038] Suspend regression in stable kernel 2.6.27.4 on Mac mini Core Duo Rafael J. Wysocki
2008-11-17 22:08 ` Tino Keitel
[not found] ` <20081117220851.GA6314-z7fNteJZwjmqk56C3691EA@public.gmane.org>
2008-11-17 22:23 ` Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12034] snd-hda-intel on Realtek ALC268 chip shows only Master volume (for playback) Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12041] 2.6.28-rc4 mem_cgroup_charge_common panic Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12047] ACPI toshiba: only register rfkill if bt is enabled Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12042] USB hid blocks USB port in 2.6.28rc3 Rafael J. Wysocki
2008-11-16 16:35 ` [Bug #12049] Oops in acpi_system_wakeup_device_seq_show Rafael J. Wysocki
2008-11-16 18:29 ` 2.6.28-rc5: Reported regressions from 2.6.27 Alan Cox
2008-11-17 11:36 ` James Bottomley
2008-11-16 18:43 ` Linus Torvalds
2008-11-16 19:28 ` Rafael J. Wysocki
2008-11-16 21:40 ` Maxim Levitsky
2008-11-17 21:39 ` Rafael J. Wysocki
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