On Thu, 17 Oct 2013 14:08:08 +0200 "Arend van Spriel" <ar...@broadcom.com> wrote:
> Hi Steven, > > When tracing I get these error messages and no trace data is recorded. I > also cloned the trace-cmd repo and tried that with the same result. I > think the kernel configuration looks ok, but adding it. > > I use it almost daily on Ubuntu system, but trying Fedora for a change. > I do have a difference with kernel taint with my driver loaded: > > Ubuntu 4096 (OOT module loaded, ie. my driver) > Fedora 4098 (OOT *and* forced module?) > > 'forced module' probably caused by: > [10808.074823] Request for unknown module key 'Fedora kernel signing > key: 8661dbf3061bfa70eb76d61691cec200318534b4' err -11 > > Would that explain my issue? > > Regards, > Arend > > ---8<---------------------------------------------------- > $ sudo trace-cmd record -e brcmfmac:* > /sys/kernel/debug/tracing/events/brcmfmac/*/filter > Hit Ctrl^C to stop recording > ^Ctrace-cmd: Interrupted system call > trace-cmd: Interrupted system call > recorder error in splice inputrecorder error in splice input I haven't seen this before. Was the brcmfmac module the one that was forced loaded? Does recording other traces work? Or is it only spicific to this module? -- Steve > > trace-cmd: Interrupted system call > recorder error in splice input > trace-cmd: Interrupted system call > recorder error in splice input > Kernel buffer statistics: > Note: "entries" are the entries left in the kernel ring buffer and > are not > recorded in the trace data. They should all be zero. > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
