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Re: [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-even
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-events |
Date: |
Tue, 23 Sep 2014 11:11:12 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Sep 22, 2014 at 05:45:15PM +0200, Markus Armbruster wrote:
> Stefan Hajnoczi <address@hidden> writes:
>
> > Over time a few unused trace events have been left behind in ./trace-events.
> > Either the code that called them was deleted or the event was never called
> > in
> > the first place.
> >
> > This is a clear violation of the solider's motto "no man left behind". It's
> > time to bring these trace events home.
> >
> > On a more serious note, unused trace events cause confusion to users who
> > want
> > to enable existing instrumentation. On the SystemTap backend we get errors
> > when attempting to enable them because the static probes that these events
> > are
> > based on do not exist.
>
> Reviewed-by: Markus Armbruster <address@hidden>
>
> While you're at it, could you also clean up the pointers to source files
> that have bit-rotted?
Sure, please post a separate patch with your Signed-off-by and I'll
merge it.
Stefan
> $ scripts/cleanup-trace-events.pl trace-events | diff -u trace-events -
> --- trace-events 2014-09-22 17:40:04.228700732 +0200
> +++ - 2014-09-22 17:41:03.107310697 +0200
> @@ -836,7 +836,7 @@
> pvscsi_tx_rings_ppn(const char* label, uint64_t ppn) "%s page: %"PRIx64""
> pvscsi_tx_rings_num_pages(const char* label, uint32_t num) "Number of %s
> pages: %u"
>
> -# xen-all.c
> +# xen-hvm.c
> xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx,
> size %#lx"
> xen_client_set_memory(uint64_t start_addr, unsigned long size, bool
> log_dirty) "%#"PRIx64" size %#lx, log_dirty %i"
>
> @@ -845,7 +845,7 @@
> xen_remap_bucket(uint64_t index) "index %#"PRIx64
> xen_map_cache_return(void* ptr) "%p"
>
> -# hw/xen/xen_platform.c
> +# hw/i386/xen/xen_platform.c
> xen_platform_log(char *s) "xen platform: %s"
>
> # qemu-coroutine.c
> @@ -1075,6 +1075,7 @@
> vmware_scratch_write(uint32_t index, uint32_t value) "index %d, value 0x%x"
> vmware_setmode(uint32_t w, uint32_t h, uint32_t bpp) "%dx%d @ %d bpp"
>
> +# vmstate.c
> # savevm.c
> savevm_section_start(const char *id, unsigned int section_id) "%s,
> section_id %u"
> savevm_section_end(const char *id, unsigned int section_id) "%s, section_id
> %u"
> @@ -1241,7 +1242,7 @@
> virtio_ccw_interpret_ccw(int cssid, int ssid, int schid, int cmd_code)
> "VIRTIO-CCW: %x.%x.%04x: interpret command %x"
> virtio_ccw_new_device(int cssid, int ssid, int schid, int devno, const char
> *devno_mode) "VIRTIO-CCW: add subchannel %x.%x.%04x, devno %04x (%s)"
>
> -# hw/intc/s390_flic.c
> +# hw/intc/s390_flic_kvm.c
> flic_create_device(int err) "flic: create device failed %d"
> flic_no_device_api(int err) "flic: no Device Contral API support %d"
> flic_reset_failed(int err) "flic: reset failed %d"
> @@ -1254,6 +1255,7 @@
> migrate_pending(uint64_t size, uint64_t max) "pending size %" PRIu64 " max
> %" PRIu64
> migrate_transferred(uint64_t tranferred, uint64_t time_spent, double
> bandwidth, uint64_t size) "transferred %" PRIu64 " time_spent %" PRIu64 "
> bandwidth %g max_size %" PRId64
>
> +# target-ppc/kvm.c
> # kvm-all.c
> kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
> kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
> @@ -1282,10 +1284,12 @@
> object_dynamic_cast_assert(const char *type, const char *target, const char
> *file, int line, const char *func) "%s->%s (%s:%d:%s)"
> object_class_dynamic_cast_assert(const char *type, const char *target, const
> char *file, int line, const char *func) "%s->%s (%s:%d:%s)"
>
> -# hw/xen/xen_pvdevice.c
> +# hw/i386/xen/xen_pvdevice.c
> xen_pv_mmio_read(uint64_t addr) "WARNING: read from Xen PV Device MMIO space
> (address %"PRIx64")"
> xen_pv_mmio_write(uint64_t addr) "WARNING: write to Xen PV Device MMIO space
> (address %"PRIx64")"
>
> +# hw/i386/pc.c
> +# hw/acpi/memory_hotplug.c
> # hw/pci/pci_host.c
> pci_cfg_read(const char *dev, unsigned devid, unsigned fnid, unsigned offs,
> unsigned val) "%s %02u:%u @0x%x -> 0x%x"
> pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs,
> unsigned val) "%s %02u:%u @0x%x <- 0x%x"
pgp7T4MSGDCuR.pgp
Description: PGP signature
- [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-events, Stefan Hajnoczi, 2014/09/22
- [Qemu-devel] [PATCH 1/3] trace-events: drop orphan virtio_blk_data_plane_complete_request, Stefan Hajnoczi, 2014/09/22
- [Qemu-devel] [PATCH 2/3] trace-events: drop orphan usb_mtp_data_out, Stefan Hajnoczi, 2014/09/22
- [Qemu-devel] [PATCH 3/3] trace-events: drop orphan iscsi trace events, Stefan Hajnoczi, 2014/09/22
- Re: [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-events, Markus Armbruster, 2014/09/22
- Re: [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-events,
Stefan Hajnoczi <=
- Re: [Qemu-devel] [PATCH 0/3] trace: drop orphan events from ./trace-events, Stefan Hajnoczi, 2014/09/24