346e15beb5
Base infrastructure to enable per-module debug messages. I've introduced CONFIG_DYNAMIC_PRINTK_DEBUG, which when enabled centralizes control of debugging statements on a per-module basis in one /proc file, currently, <debugfs>/dynamic_printk/modules. When, CONFIG_DYNAMIC_PRINTK_DEBUG, is not set, debugging statements can still be enabled as before, often by defining 'DEBUG' for the proper compilation unit. Thus, this patch set has no affect when CONFIG_DYNAMIC_PRINTK_DEBUG is not set. The infrastructure currently ties into all pr_debug() and dev_dbg() calls. That is, if CONFIG_DYNAMIC_PRINTK_DEBUG is set, all pr_debug() and dev_dbg() calls can be dynamically enabled/disabled on a per-module basis. Future plans include extending this functionality to subsystems, that define their own debug levels and flags. Usage: Dynamic debugging is controlled by the debugfs file, <debugfs>/dynamic_printk/modules. This file contains a list of the modules that can be enabled. The format of the file is as follows: <module_name> <enabled=0/1> . . . <module_name> : Name of the module in which the debug call resides <enabled=0/1> : whether the messages are enabled or not For example: snd_hda_intel enabled=0 fixup enabled=1 driver enabled=0 Enable a module: $echo "set enabled=1 <module_name>" > dynamic_printk/modules Disable a module: $echo "set enabled=0 <module_name>" > dynamic_printk/modules Enable all modules: $echo "set enabled=1 all" > dynamic_printk/modules Disable all modules: $echo "set enabled=0 all" > dynamic_printk/modules Finally, passing "dynamic_printk" at the command line enables debugging for all modules. This mode can be turned off via the above disable command. [gkh: minor cleanups and tweaks to make the build work quietly] Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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|---|---|---|
| .. | ||
| ABI | ||
| DocBook | ||
| PCI | ||
| RCU | ||
| accounting | ||
| acpi | ||
| aoe | ||
| arm | ||
| auxdisplay | ||
| blackfin | ||
| block | ||
| cdrom | ||
| connector | ||
| console | ||
| controllers | ||
| cpu-freq | ||
| cpuidle | ||
| cris | ||
| crypto | ||
| device-mapper | ||
| driver-model | ||
| dvb | ||
| early-userspace | ||
| fault-injection | ||
| fb | ||
| filesystems | ||
| firmware_class | ||
| frv | ||
| hwmon | ||
| i2c | ||
| i2o | ||
| ia64 | ||
| ide | ||
| infiniband | ||
| input | ||
| ioctl | ||
| isdn | ||
| ja_JP | ||
| kbuild | ||
| kdump | ||
| ko_KR | ||
| laptops | ||
| lguest | ||
| m68k | ||
| make | ||
| mips | ||
| mn10300 | ||
| namespaces | ||
| netlabel | ||
| networking | ||
| parisc | ||
| pcmcia | ||
| power | ||
| powerpc | ||
| prctl | ||
| s390 | ||
| scheduler | ||
| scsi | ||
| serial | ||
| sh | ||
| sound | ||
| sparc | ||
| spi | ||
| sysctl | ||
| telephony | ||
| thermal | ||
| timers | ||
| tracers | ||
| uml | ||
| usb | ||
| video4linux | ||
| vm | ||
| w1 | ||
| watchdog | ||
| x86 | ||
| zh_CN | ||
| 00-INDEX | ||
| BUG-HUNTING | ||
| Changes | ||
| CodingStyle | ||
| DMA-API.txt | ||
| DMA-ISA-LPC.txt | ||
| DMA-attributes.txt | ||
| DMA-mapping.txt | ||
| HOWTO | ||
| IO-mapping.txt | ||
| IPMI.txt | ||
| IRQ-affinity.txt | ||
| IRQ.txt | ||
| Intel-IOMMU.txt | ||
| MSI-HOWTO.txt | ||
| Makefile | ||
| ManagementStyle | ||
| README.DAC960 | ||
| README.cycladesZ | ||
| SAK.txt | ||
| SELinux.txt | ||
| SM501.txt | ||
| SecurityBugs | ||
| Smack.txt | ||
| SubmitChecklist | ||
| SubmittingDrivers | ||
| SubmittingPatches | ||
| VGA-softcursor.txt | ||
| applying-patches.txt | ||
| atomic_ops.txt | ||
| basic_profiling.txt | ||
| binfmt_misc.txt | ||
| braille-console.txt | ||
| bt8xxgpio.txt | ||
| cachetlb.txt | ||
| cciss.txt | ||
| cgroups.txt | ||
| computone.txt | ||
| cpqarray.txt | ||
| cpu-hotplug.txt | ||
| cpu-load.txt | ||
| cpusets.txt | ||
| cputopology.txt | ||
| dcdbas.txt | ||
| debugging-modules.txt | ||
| debugging-via-ohci1394.txt | ||
| dell_rbu.txt | ||
| devices.txt | ||
| digiepca.txt | ||
| dontdiff | ||
| edac.txt | ||
| eisa.txt | ||
| email-clients.txt | ||
| exception.txt | ||
| feature-removal-schedule.txt | ||
| floppy.txt | ||
| ftrace.txt | ||
| gpio.txt | ||
| hayes-esp.txt | ||
| highuid.txt | ||
| hw_random.txt | ||
| initrd.txt | ||
| io_ordering.txt | ||
| ioctl-number.txt | ||
| iostats.txt | ||
| irqflags-tracing.txt | ||
| isapnp.txt | ||
| java.txt | ||
| kernel-doc-nano-HOWTO.txt | ||
| kernel-docs.txt | ||
| kernel-parameters.txt | ||
| keys-request-key.txt | ||
| keys.txt | ||
| kobject.txt | ||
| kprobes.txt | ||
| kref.txt | ||
| ldm.txt | ||
| leds-class.txt | ||
| local_ops.txt | ||
| lockdep-design.txt | ||
| lockstat.txt | ||
| logo.gif | ||
| logo.txt | ||
| magic-number.txt | ||
| markers.txt | ||
| mca.txt | ||
| md.txt | ||
| memory-barriers.txt | ||
| memory-hotplug.txt | ||
| memory.txt | ||
| mono.txt | ||
| moxa-smartio | ||
| mutex-design.txt | ||
| nbd.txt | ||
| nmi_watchdog.txt | ||
| nommu-mmap.txt | ||
| numastat.txt | ||
| oops-tracing.txt | ||
| paride.txt | ||
| parport-lowlevel.txt | ||
| parport.txt | ||
| pi-futex.txt | ||
| pnp.txt | ||
| preempt-locking.txt | ||
| prio_tree.txt | ||
| ramdisk.txt | ||
| rbtree.txt | ||
| rfkill.txt | ||
| riscom8.txt | ||
| robust-futex-ABI.txt | ||
| robust-futexes.txt | ||
| rocket.txt | ||
| rt-mutex-design.txt | ||
| rt-mutex.txt | ||
| rtc.txt | ||
| serial-console.txt | ||
| sgi-ioc4.txt | ||
| sgi-visws.txt | ||
| sparse.txt | ||
| specialix.txt | ||
| spinlocks.txt | ||
| stable_api_nonsense.txt | ||
| stable_kernel_rules.txt | ||
| stallion.txt | ||
| svga.txt | ||
| sx.txt | ||
| sysfs-rules.txt | ||
| sysrq.txt | ||
| tty.txt | ||
| unaligned-memory-access.txt | ||
| unicode.txt | ||
| unshare.txt | ||
| video-output.txt | ||
| volatile-considered-harmful.txt | ||
| voyager.txt | ||
| zorro.txt | ||
README.cycladesZ
The Cyclades-Z must have firmware loaded onto the card before it will
operate. This operation should be performed during system startup,
The firmware, loader program and the latest device driver code are
available from Cyclades at
ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/