diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Documentation/BUG-HUNTING | 113 | ||||
| -rw-r--r-- | Documentation/dvb/get_dvb_firmware | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/isofs.txt | 4 | ||||
| -rw-r--r-- | Documentation/filesystems/jfs.txt | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/vfat.txt | 6 | ||||
| -rw-r--r-- | Documentation/spinlocks.txt | 2 | ||||
| -rw-r--r-- | drivers/base/platform.c | 2 | ||||
| -rw-r--r-- | drivers/block/cciss.c | 2 | ||||
| -rw-r--r-- | drivers/net/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/s390/net/claw.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 2 | ||||
| -rw-r--r-- | fs/befs/linuxvfs.c | 2 | ||||
| -rw-r--r-- | fs/cifs/CHANGES | 2 | ||||
| -rw-r--r-- | fs/fat/dir.c | 2 | ||||
| -rw-r--r-- | fs/fat/inode.c | 2 | ||||
| -rw-r--r-- | fs/isofs/joliet.c | 2 | ||||
| -rw-r--r-- | fs/nls/Kconfig | 2 | ||||
| -rw-r--r-- | include/asm-mips/termbits.h | 2 | ||||
| -rw-r--r-- | include/linux/device.h | 2 | ||||
| -rw-r--r-- | include/linux/msdos_fs.h | 2 | ||||
| -rw-r--r-- | ipc/mqueue.c | 1 |
22 files changed, 136 insertions, 23 deletions
diff --git a/.gitignore b/.gitignore index 53e53f2791f..27fd3762125 100644 --- a/.gitignore +++ b/.gitignore @@ -16,6 +16,7 @@ # # Top-level generic files # +tags vmlinux* System.map Module.symvers diff --git a/Documentation/BUG-HUNTING b/Documentation/BUG-HUNTING index ca29242dbc3..65b97e1dbf7 100644 --- a/Documentation/BUG-HUNTING +++ b/Documentation/BUG-HUNTING @@ -1,3 +1,56 @@ +Table of contents +================= + +Last updated: 20 December 2005 + +Contents +======== + +- Introduction +- Devices not appearing +- Finding patch that caused a bug +-- Finding using git-bisect +-- Finding it the old way +- Fixing the bug + +Introduction +============ + +Always try the latest kernel from kernel.org and build from source. If you are +not confident in doing that please report the bug to your distribution vendor +instead of to a kernel developer. + +Finding bugs is not always easy. Have a go though. If you can't find it don't +give up. Report as much as you have found to the relevant maintainer. See +MAINTAINERS for who that is for the subsystem you have worked on. + +Before you submit a bug report read REPORTING-BUGS. + +Devices not appearing +===================== + +Often this is caused by udev. Check that first before blaming it on the +kernel. + +Finding patch that caused a bug +=============================== + + + +Finding using git-bisect +------------------------ + +Using the provided tools with git makes finding bugs easy provided the bug is +reproducible. + +Steps to do it: +- start using git for the kernel source +- read the man page for git-bisect +- have fun + +Finding it the old way +---------------------- + [Sat Mar 2 10:32:33 PST 1996 KERNEL_BUG-HOWTO lm@sgi.com (Larry McVoy)] This is how to track down a bug if you know nothing about kernel hacking. @@ -90,3 +143,63 @@ it does work and it lets non-hackers help fix bugs. And it is cool because Linux snapshots will let you do this - something that you can't do with vendor supplied releases. +Fixing the bug +============== + +Nobody is going to tell you how to fix bugs. Seriously. You need to work it +out. But below are some hints on how to use the tools. + +To debug a kernel, use objdump and look for the hex offset from the crash +output to find the valid line of code/assembler. Without debug symbols, you +will see the assembler code for the routine shown, but if your kernel has +debug symbols the C code will also be available. (Debug symbols can be enabled +in the kernel hacking menu of the menu configuration.) For example: + + objdump -r -S -l --disassemble net/dccp/ipv4.o + +NB.: you need to be at the top level of the kernel tree for this to pick up +your C files. + +If you don't have access to the code you can also debug on some crash dumps +e.g. crash dump output as shown by Dave Miller. + +> EIP is at ip_queue_xmit+0x14/0x4c0 +> ... +> Code: 44 24 04 e8 6f 05 00 00 e9 e8 fe ff ff 8d 76 00 8d bc 27 00 00 +> 00 00 55 57 56 53 81 ec bc 00 00 00 8b ac 24 d0 00 00 00 8b 5d 08 +> <8b> 83 3c 01 00 00 89 44 24 14 8b 45 28 85 c0 89 44 24 18 0f 85 +> +> Put the bytes into a "foo.s" file like this: +> +> .text +> .globl foo +> foo: +> .byte .... /* bytes from Code: part of OOPS dump */ +> +> Compile it with "gcc -c -o foo.o foo.s" then look at the output of +> "objdump --disassemble foo.o". +> +> Output: +> +> ip_queue_xmit: +> push %ebp +> push %edi +> push %esi +> push %ebx +> sub $0xbc, %esp +> mov 0xd0(%esp), %ebp ! %ebp = arg0 (skb) +> mov 0x8(%ebp), %ebx ! %ebx = skb->sk +> mov 0x13c(%ebx), %eax ! %eax = inet_sk(sk)->opt + +Another very useful option of the Kernel Hacking section in menuconfig is +Debug memory allocations. This will help you see whether data has been +initialised and not set before use etc. To see the values that get assigned +with this look at mm/slab.c and search for POISON_INUSE. When using this an +Oops will often show the poisoned data instead of zero which is the default. + +Once you have worked out a fix please submit it upstream. After all open +source is about sharing what you do and don't you want to be recognised for +your genius? + +Please do read Documentation/SubmittingPatches though to help your code get +accepted. diff --git a/Documentation/dvb/get_dvb_firmware b/Documentation/dvb/get_dvb_firmware index bb55f49f274..15fc8fbef67 100644 --- a/Documentation/dvb/get_dvb_firmware +++ b/Documentation/dvb/get_dvb_firmware @@ -246,7 +246,7 @@ sub vp7041 { } sub dibusb { - my $url = "http://www.linuxtv.org/downloads/firmware/dvb-dibusb-5.0.0.11.fw"; + my $url = "http://www.linuxtv.org/downloads/firmware/dvb-usb-dibusb-5.0.0.11.fw"; my $outfile = "dvb-dibusb-5.0.0.11.fw"; my $hash = "fa490295a527360ca16dcdf3224ca243"; diff --git a/Documentation/filesystems/isofs.txt b/Documentation/filesystems/isofs.txt index 424585ff6ea..758e50401c1 100644 --- a/Documentation/filesystems/isofs.txt +++ b/Documentation/filesystems/isofs.txt @@ -9,9 +9,9 @@ when using discs encoded using Microsoft's Joliet extensions. iocharset=name Character set to use for converting from Unicode to ASCII. Joliet filenames are stored in Unicode format, but Unix for the most part doesn't know how to deal with Unicode. - There is also an option of doing UTF8 translations with the + There is also an option of doing UTF-8 translations with the utf8 option. - utf8 Encode Unicode names in UTF8 format. Default is no. + utf8 Encode Unicode names in UTF-8 format. Default is no. Mount options unique to the isofs filesystem. block=512 Set the block size for the disk to 512 bytes diff --git a/Documentation/filesystems/jfs.txt b/Documentation/filesystems/jfs.txt index 3e992daf99a..bae12866374 100644 --- a/Documentation/filesystems/jfs.txt +++ b/Documentation/filesystems/jfs.txt @@ -6,7 +6,7 @@ The following mount options are supported: iocharset=name Character set to use for converting from Unicode to ASCII. The default is to do no conversion. Use - iocharset=utf8 for UTF8 translations. This requires + iocharset=utf8 for UTF-8 translations. This requires CONFIG_NLS_UTF8 to be set in the kernel .config file. iocharset=none specifies the default behavior explicitly. diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index 5ead20c6c74..2001abbc60e 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt @@ -28,16 +28,16 @@ iocharset=name -- Character set to use for converting between the know how to deal with Unicode. By default, FAT_DEFAULT_IOCHARSET setting is used. - There is also an option of doing UTF8 translations + There is also an option of doing UTF-8 translations with the utf8 option. NOTE: "iocharset=utf8" is not recommended. If unsure, you should consider the following option instead. -utf8=<bool> -- UTF8 is the filesystem safe version of Unicode that +utf8=<bool> -- UTF-8 is the filesystem safe version of Unicode that is used by the console. It can be be enabled for the filesystem with this option. If 'uni_xlate' gets set, - UTF8 gets disabled. + UTF-8 gets disabled. uni_xlate=<bool> -- Translate unhandled Unicode characters to special escaped sequences. This would let you backup and diff --git a/Documentation/spinlocks.txt b/Documentation/spinlocks.txt index c2122996631..a661d684768 100644 --- a/Documentation/spinlocks.txt +++ b/Documentation/spinlocks.txt @@ -9,7 +9,7 @@ removed soon. So for any new code dynamic initialization should be used: static int __init xxx_init(void) { spin_lock_init(&xxx_lock); - rw_lock_init(&xxx_rw_lock); + rwlock_init(&xxx_rw_lock); ... } diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 89b26832132..83f5c5984d1 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -326,7 +326,7 @@ EXPORT_SYMBOL_GPL(platform_device_register); * platform_device_unregister - unregister a platform-level device * @pdev: platform device we're unregistering * - * Unregistration is done in 2 steps. Fisrt we release all resources + * Unregistration is done in 2 steps. First we release all resources * and remove it from the subsystem, then we drop reference count by * calling platform_device_put(). */ diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index b9c786ee6fa..cf39cf9aac2 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -2137,7 +2137,7 @@ static void start_io( ctlr_info_t *h) break; } - /* Get the frist entry from the Request Q */ + /* Get the first entry from the Request Q */ removeQ(&(h->reqQ), c); h->Qdepth--; diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index e0b11095b9d..00993e8ba58 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1914,7 +1914,7 @@ config E1000_DISABLE_PACKET_SPLIT depends on E1000 help Say Y here if you want to use the legacy receive path for PCI express - hadware. + hardware. If in doubt, say N. diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index a86436a7a60..acd2a3f005f 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -1404,7 +1404,7 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first, if ( privptr-> p_read_active_first ==NULL ) { #ifdef DEBUGMSG - printk(KERN_INFO "%s:%s p_read_active_frist == NULL \n", + printk(KERN_INFO "%s:%s p_read_active_first == NULL \n", dev->name,__FUNCTION__); printk(KERN_INFO "%s:%s Read active first/last changed \n", dev->name,__FUNCTION__); diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 38ede24b22a..39729460b00 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -902,7 +902,7 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd) int ret; /* - * Frist wait for all commands to complete + * First wait for all commands to complete */ ret = megasas_generic_reset(scmd); diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 2d365cb8eec..dd6048ce053 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -561,7 +561,7 @@ befs_utf2nls(struct super_block *sb, const char *in, * @sb: Superblock * @src: Input string buffer in NLS format * @srclen: Length of input string in bytes - * @dest: The output string in UTF8 format + * @dest: The output string in UTF-8 format * @destlen: Length of the output buffer * * Converts input string @src, which is in the format of the loaded NLS map, diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index d335015473a..cb68efba35d 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -160,7 +160,7 @@ improperly zeroed buffer in CIFS Unix extensions set times call. Version 1.25 ------------ Fix internationalization problem in cifs readdir with filenames that map to -longer UTF8 strings than the string on the wire was in Unicode. Add workaround +longer UTF-8 strings than the string on the wire was in Unicode. Add workaround for readdir to netapp servers. Fix search rewind (seek into readdir to return non-consecutive entries). Do not do readdir when server negotiates buffer size to small to fit filename. Add support for reading POSIX ACLs from diff --git a/fs/fat/dir.c b/fs/fat/dir.c index db0de5c621c..4095bc149eb 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@ -114,7 +114,7 @@ static inline int fat_get_entry(struct inode *dir, loff_t *pos, } /* - * Convert Unicode 16 to UTF8, translated Unicode, or ASCII. + * Convert Unicode 16 to UTF-8, translated Unicode, or ASCII. * If uni_xlate is enabled and we can't get a 1:1 conversion, use a * colon as an escape character since it is normally invalid on the vfat * filesystem. The following four characters are the hexadecimal digits diff --git a/fs/fat/inode.c b/fs/fat/inode.c index e7f4aa7fc68..e78d7b4842c 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -1101,7 +1101,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, return -EINVAL; } } - /* UTF8 doesn't provide FAT semantics */ + /* UTF-8 doesn't provide FAT semantics */ if (!strcmp(opts->iocharset, "utf8")) { printk(KERN_ERR "FAT: utf8 is not a recommended IO charset" " for FAT filesystems, filesystem will be case sensitive!\n"); diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c index 2931de7f1a6..81a90e170ac 100644 --- a/fs/isofs/joliet.c +++ b/fs/isofs/joliet.c @@ -11,7 +11,7 @@ #include "isofs.h" /* - * Convert Unicode 16 to UTF8 or ASCII. + * Convert Unicode 16 to UTF-8 or ASCII. */ static int uni16_to_x8(unsigned char *ascii, u16 *uni, int len, struct nls_table *nls) diff --git a/fs/nls/Kconfig b/fs/nls/Kconfig index 0ab8f00bdbb..976ecccd6f5 100644 --- a/fs/nls/Kconfig +++ b/fs/nls/Kconfig @@ -491,7 +491,7 @@ config NLS_KOI8_U (koi8-u) and Belarusian (koi8-ru) character sets. config NLS_UTF8 - tristate "NLS UTF8" + tristate "NLS UTF-8" depends on NLS help If you want to display filenames with native language characters diff --git a/include/asm-mips/termbits.h b/include/asm-mips/termbits.h index c29c65b7818..fa6d04dac56 100644 --- a/include/asm-mips/termbits.h +++ b/include/asm-mips/termbits.h @@ -77,7 +77,7 @@ struct termios { #define IXANY 0004000 /* Any character will restart after stop. */ #define IXOFF 0010000 /* Enable start/stop input control. */ #define IMAXBEL 0020000 /* Ring bell when input queue is full. */ -#define IUTF8 0040000 /* Input is UTF8 */ +#define IUTF8 0040000 /* Input is UTF-8 */ /* c_oflag bits */ #define OPOST 0000001 /* Perform output processing. */ diff --git a/include/linux/device.h b/include/linux/device.h index 6d2345d8608..f6e72a65a3f 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -400,7 +400,7 @@ extern struct device * get_device(struct device * dev); extern void put_device(struct device * dev); -/* drivers/base/power.c */ +/* drivers/base/power/shutdown.c */ extern void device_shutdown(void); diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h index e933e2a355a..8bcd9450d92 100644 --- a/include/linux/msdos_fs.h +++ b/include/linux/msdos_fs.h @@ -199,7 +199,7 @@ struct fat_mount_options { sys_immutable:1, /* set = system files are immutable */ dotsOK:1, /* set = hidden and system files are named '.filename' */ isvfat:1, /* 0=no vfat long filename support, 1=vfat support */ - utf8:1, /* Use of UTF8 character set (Default) */ + utf8:1, /* Use of UTF-8 character set (Default) */ unicode_xlate:1, /* create escape sequences for unhandled Unicode */ numtail:1, /* Does first alias have a numeric '~1' type tail? */ atari:1, /* Use Atari GEMDOS variation of MS-DOS fs */ diff --git a/ipc/mqueue.c b/ipc/mqueue.c index fd2e26b6f96..85c52fd26bf 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -51,7 +51,6 @@ #define HARD_MSGMAX (131072/sizeof(void*)) #define DFLT_MSGSIZEMAX 8192 /* max message size */ -#define NOTIFY_COOKIE_LEN 32 struct ext_wait_queue { /* queue of sleeping tasks */ struct task_struct *task; |