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[Some of this is taken from Frohwalt Egerer's original linux-kernel FAQ]

     What follows is a suggested procedure for reporting Linux bugs. You
aren't obliged to use the bug reporting format, it is provided as a guide
to the kind of information that can be useful to developers - no more.

     If the failure includes an "OOPS:" type message in your log or on
screen please read "Documentation/oops-tracing.txt" before posting your
bug report. This explains what you should do with the "Oops" information
to make it useful to the recipient.

      Send the output to the maintainer of the kernel area that seems to
be involved with the problem, and cc the relevant mailing list. Don't
worry too much about getting the wrong person. If you are unsure send it
to the person responsible for the code relevant to what you were doing.
If it occurs repeatably try and describe how to recreate it. That is
worth even more than the oops itself.  The list of maintainers and
mailing lists is in the MAINTAINERS file in this directory.

      If it is a security bug, please copy the Security Contact listed
in the MAINTAINERS file.  They can help coordinate bugfix and disclosure.
See Documentation/SecurityBugs for more information.

      If you are totally stumped as to whom to send the report, send it to
linux-kernel@vger.kernel.org. (For more information on the linux-kernel
mailing list see http://www.tux.org/lkml/).

This is a suggested format for a bug report sent to the Linux kernel mailing
list. Having a standardized bug report form makes it easier for you not to
overlook things, and easier for the developers to find the pieces of
information they're really interested in. Don't feel you have to follow it.

      First run the ver_linux script included as scripts/ver_linux, which
reports the version of some important subsystems.  Run this script with
the command "sh scripts/ver_linux".

Use that information to fill in all fields of the bug report form, and
post it to the mailing list with a subject of "PROBLEM: <one line
summary from [1.]>" for easy identification by the developers.

[1.] One line summary of the problem:
[2.] Full description of the problem/report:
[3.] Keywords (i.e., modules, networking, kernel):
[4.] Kernel information
[4.1.] Kernel version (from /proc/version):
[4.2.] Kernel .config file:
[5.] Most recent kernel version which did not have the bug:
[6.] Output of Oops.. message (if applicable) with symbolic information
     resolved (see Documentation/oops-tracing.txt)
[7.] A small shell script or example program which triggers the
     problem (if possible)
[8.] Environment
[8.1.] Software (add the output of the ver_linux script here)
[8.2.] Processor information (from /proc/cpuinfo):
[8.3.] Module information (from /proc/modules):
[8.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
[8.5.] PCI information ('lspci -vvv' as root)
[8.6.] SCSI information (from /proc/scsi/scsi)
[8.7.] Other information that might be relevant to the problem
       (please look in /proc and include all information that you
       think to be relevant):
[X.] Other notes, patches, fixes, workarounds:


Thank you
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/*
 * syscalls.h - Linux syscall interfaces (non-arch-specific)
 *
 * Copyright (c) 2004 Randy Dunlap
 * Copyright (c) 2004 Open Source Development Labs
 *
 * This file is released under the GPLv2.
 * See the file COPYING for more details.
 */

#ifndef _LINUX_SYSCALLS_H
#define _LINUX_SYSCALLS_H

struct epoll_event;
struct iattr;
struct inode;
struct iocb;
struct io_event;
struct iovec;
struct itimerspec;
struct itimerval;
struct kexec_segment;
struct linux_dirent;
struct linux_dirent64;
struct list_head;
struct mmap_arg_struct;
struct msgbuf;
struct msghdr;
struct mmsghdr;
struct msqid_ds;
struct new_utsname;
struct nfsctl_arg;
struct __old_kernel_stat;
struct oldold_utsname;
struct old_utsname;
struct pollfd;
struct rlimit;
struct rlimit64;
struct rusage;
struct sched_param;
struct sel_arg_struct;
struct semaphore;
struct sembuf;
struct shmid_ds;
struct sockaddr;
struct stat;
struct stat64;
struct statfs;
struct statfs64;
struct __sysctl_args;
struct sysinfo;
struct timespec;
struct timeval;
struct timex;
struct timezone;
struct tms;
struct utimbuf;
struct mq_attr;
struct compat_stat;
struct compat_timeval;
struct robust_list_head;
struct getcpu_cache;
struct old_linux_dirent;
struct perf_event_attr;
struct file_handle;
struct sigaltstack;

#include <linux/types.h>
#include <linux/aio_abi.h>
#include <linux/capability.h>
#include <linux/signal.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/sem.h>
#include <asm/siginfo.h>
#include <linux/unistd.h>
#include <linux/quota.h>
#include <linux/key.h>
#include <trace/syscall.h>

/*
 * __MAP - apply a macro to syscall arguments
 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
 *    m(t1, a1), m(t2, a2), ..., m(tn, an)
 * The first argument must be equal to the amount of type/name
 * pairs given.  Note that this list of pairs (i.e. the arguments
 * of __MAP starting at the third one) is in the same format as
 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
 */
#define __MAP1(m,t,a) m(t,a)
#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
#define __MAP(n,...) __MAP##n(__VA_ARGS__)

#define __SC_DECL(t, a)	t a
#define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
#define __SC_CAST(t, a)	(t) a
#define __SC_ARGS(t, a)	a
#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))

#ifdef CONFIG_FTRACE_SYSCALLS
#define __SC_STR_ADECL(t, a)	#a
#define __SC_STR_TDECL(t, a)	#t

extern struct ftrace_event_class event_class_syscall_enter;
extern struct ftrace_event_class event_class_syscall_exit;
extern struct trace_event_functions enter_syscall_print_funcs;
extern struct trace_event_functions exit_syscall_print_funcs;

#define SYSCALL_TRACE_ENTER_EVENT(sname)				\
	static struct syscall_metadata __syscall_meta_##sname;		\
	static struct ftrace_event_call __used				\
	  event_enter_##sname = {					\
		.name                   = "sys_enter"#sname,		\
		.class			= &event_class_syscall_enter,	\
		.event.funcs            = &enter_syscall_print_funcs,	\
		.data			= (void *)&__syscall_meta_##sname,\
		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
	};								\
	static struct ftrace_event_call __used				\
	  __attribute__((section("_ftrace_events")))			\
	 *__event_enter_##sname = &event_enter_##sname;

#define SYSCALL_TRACE_EXIT_EVENT(sname)					\
	static struct syscall_metadata __syscall_meta_##sname;		\
	static struct ftrace_event_call __used				\
	  event_exit_##sname = {					\
		.name                   = "sys_exit"#sname,		\
		.class			= &event_class_syscall_exit,	\
		.event.funcs		= &exit_syscall_print_funcs,	\
		.data			= (void *)&__syscall_meta_##sname,\
		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
	};								\
	static struct ftrace_event_call __used				\
	  __attribute__((section("_ftrace_events")))			\
	*__event_exit_##sname = &event_exit_##sname;

#define SYSCALL_METADATA(sname, nb)				\
	SYSCALL_TRACE_ENTER_EVENT(sname);			\
	SYSCALL_TRACE_EXIT_EVENT(sname);			\
	static struct syscall_metadata __used			\
	  __syscall_meta_##sname = {				\
		.name 		= "sys"#sname,			\
		.syscall_nr	= -1,	/* Filled in at boot */	\
		.nb_args 	= nb,				\
		.types		= types_##sname,		\
		.args		= args_##sname,			\
		.enter_event	= &event_enter_##sname,		\
		.exit_event	= &event_exit_##sname,		\
		.enter_fields	= LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
	};							\
	static struct syscall_metadata __used			\
	  __attribute__((section("__syscalls_metadata")))	\
	 *__p_syscall_meta_##sname = &__syscall_meta_##sname;

#define SYSCALL_DEFINE0(sname)					\
	SYSCALL_TRACE_ENTER_EVENT(_##sname);			\
	SYSCALL_TRACE_EXIT_EVENT(_##sname);			\
	static struct syscall_metadata __used			\
	  __syscall_meta__##sname = {				\
		.name 		= "sys_"#sname,			\
		.syscall_nr	= -1,	/* Filled in at boot */	\
		.nb_args 	= 0,				\
		.enter_event	= &event_enter__##sname,	\
		.exit_event	= &event_exit__##sname,		\
		.enter_fields	= LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
	};							\
	static struct syscall_metadata __used			\
	  __attribute__((section("__syscalls_metadata")))	\
	 *__p_syscall_meta_##sname = &__syscall_meta__##sname;	\
	asmlinkage long sys_##sname(void)
#else
#define SYSCALL_DEFINE0(name)	   asmlinkage long sys_##name(void)
#endif

#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)

#ifdef CONFIG_FTRACE_SYSCALLS
#define SYSCALL_DEFINEx(x, sname, ...)				\
	static const char *types_##sname[] = {			\
		__MAP(x,__SC_STR_TDECL,__VA_ARGS__)		\
	};							\
	static const char *args_##sname[] = {			\
		__MAP(x,__SC_STR_ADECL,__VA_ARGS__)		\
	};							\
	SYSCALL_METADATA(sname, x);				\
	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
#else
#define SYSCALL_DEFINEx(x, sname, ...)				\
	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
#endif

#define SYSCALL_DEFINE(name) static inline long SYSC_##name

#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
#define __SYSCALL_DEFINEx(x, name, ...)					\
	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
	{								\
		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
		__MAP(x,__SC_TEST,__VA_ARGS__);				\
		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
		return ret;						\
	}								\
	SYSCALL_ALIAS(sys##name, SyS##name);				\
	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))

asmlinkage long sys_time(time_t __user *tloc);
asmlinkage long sys_stime(time_t __user *tptr);
asmlinkage long sys_gettimeofday(struct timeval __user *tv,
				struct timezone __user *tz);
asmlinkage long sys_settimeofday(struct timeval __user *tv,
				struct timezone __user *tz);
asmlinkage long sys_adjtimex(struct timex __user *txc_p);

asmlinkage long sys_times(struct tms __user *tbuf);

asmlinkage long sys_gettid(void);
asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
asmlinkage long sys_alarm(unsigned int seconds);
asmlinkage long sys_getpid(void);
asmlinkage long sys_getppid(void);
asmlinkage long sys_getuid(void);
asmlinkage long sys_geteuid(void);
asmlinkage long sys_getgid(void);
asmlinkage long sys_getegid(void);
asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
asmlinkage long sys_getpgid(pid_t pid);
asmlinkage long sys_getpgrp(void);
asmlinkage long sys_getsid(pid_t pid);
asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);

asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
asmlinkage long sys_setgid(gid_t gid);
asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
asmlinkage long sys_setuid(uid_t uid);
asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
asmlinkage long sys_setfsuid(uid_t uid);
asmlinkage long sys_setfsgid(gid_t gid);
asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
asmlinkage long sys_setsid(void);
asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);

asmlinkage long sys_acct(const char __user *name);
asmlinkage long sys_capget(cap_user_header_t header,
				cap_user_data_t dataptr);
asmlinkage long sys_capset(cap_user_header_t header,
				const cap_user_data_t data);
asmlinkage long sys_personality(unsigned int personality);

asmlinkage long sys_sigpending(old_sigset_t __user *set);
asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
				old_sigset_t __user *oset);
asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
				struct sigaltstack __user *uoss);

asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
asmlinkage long sys_setitimer(int which,
				struct itimerval __user *value,
				struct itimerval __user *ovalue);
asmlinkage long sys_timer_create(clockid_t which_clock,
				 struct sigevent __user *timer_event_spec,
				 timer_t __user * created_timer_id);
asmlinkage long sys_timer_gettime(timer_t timer_id,
				struct itimerspec __user *setting);
asmlinkage long sys_timer_getoverrun(timer_t timer_id);
asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
				const struct itimerspec __user *new_setting,
				struct itimerspec __user *old_setting);
asmlinkage long sys_timer_delete(timer_t timer_id);
asmlinkage long sys_clock_settime(clockid_t which_clock,
				const struct timespec __user *tp);
asmlinkage long sys_clock_gettime(clockid_t which_clock,
				struct timespec __user *tp);
asmlinkage long sys_clock_adjtime(clockid_t which_clock,
				struct timex __user *tx);
asmlinkage long sys_clock_getres(clockid_t which_clock,
				struct timespec __user *tp);
asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
				const struct timespec __user *rqtp,
				struct timespec __user *rmtp);

asmlinkage long sys_nice(int increment);
asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
					struct sched_param __user *param);
asmlinkage long sys_sched_setparam(pid_t pid,
					struct sched_param __user *param);
asmlinkage long sys_sched_getscheduler(pid_t pid);
asmlinkage long sys_sched_getparam(pid_t pid,
					struct sched_param __user *param);
asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
					unsigned long __user *user_mask_ptr);
asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
					unsigned long __user *user_mask_ptr);
asmlinkage long sys_sched_yield(void);
asmlinkage long sys_sched_get_priority_max(int policy);
asmlinkage long sys_sched_get_priority_min(int policy);
asmlinkage long sys_sched_rr_get_interval(pid_t pid,
					struct timespec __user *interval);
asmlinkage long sys_setpriority(int which, int who, int niceval);
asmlinkage long sys_getpriority(int which, int who);

asmlinkage long sys_shutdown(int, int);
asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
				void __user *arg);
asmlinkage long sys_restart_syscall(void);
asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
				struct kexec_segment __user *segments,
				unsigned long flags);

asmlinkage long sys_exit(int error_code);
asmlinkage long sys_exit_group(int error_code);
asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
				int options, struct rusage __user *ru);
asmlinkage long sys_waitid(int which, pid_t pid,
			   struct siginfo __user *infop,
			   int options, struct rusage __user *ru);
asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
asmlinkage long sys_set_tid_address(int __user *tidptr);
asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
			struct timespec __user *utime, u32 __user *uaddr2,
			u32 val3);

asmlinkage long sys_init_module(void __user *umod, unsigned long len,
				const char __user *uargs);
asmlinkage long sys_delete_module(const char __user *name_user,
				unsigned int flags);

#ifdef CONFIG_OLD_SIGSUSPEND
asmlinkage long sys_sigsuspend(old_sigset_t mask);
#endif

#ifdef CONFIG_OLD_SIGSUSPEND3
asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
#endif

asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);

#ifdef CONFIG_OLD_SIGACTION
asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
				struct old_sigaction __user *);
#endif

#ifndef CONFIG_ODD_RT_SIGACTION
asmlinkage long sys_rt_sigaction(int,
				 const struct sigaction __user *,
				 struct sigaction __user *,
				 size_t);
#endif
asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
				sigset_t __user *oset, size_t sigsetsize);
asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
				siginfo_t __user *uinfo,
				const struct timespec __user *uts,
				size_t sigsetsize);
asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t  pid, int sig,
		siginfo_t __user *uinfo);
asmlinkage long sys_kill(int pid, int sig);
asmlinkage long sys_tgkill(int tgid, int pid, int sig);
asmlinkage long sys_tkill(int pid, int sig);
asmlinkage long sys_rt_sigqueueinfo(int pid, int sig, siginfo_t __user *uinfo);
asmlinkage long sys_sgetmask(void);
asmlinkage long sys_ssetmask(int newmask);
asmlinkage long sys_signal(int sig, __sighandler_t handler);
asmlinkage long sys_pause(void);

asmlinkage long sys_sync(void);
asmlinkage long sys_fsync(unsigned int fd);
asmlinkage long sys_fdatasync(unsigned int fd);
asmlinkage long sys_bdflush(int func, long data);
asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
				char __user *type, unsigned long flags,
				void __user *data);
asmlinkage long sys_umount(char __user *name, int flags);
asmlinkage long sys_oldumount(char __user *name);
asmlinkage long sys_truncate(const char __user *path, long length);
asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
asmlinkage long sys_stat(const char __user *filename,
			struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_statfs(const char __user * path,
				struct statfs __user *buf);
asmlinkage long sys_statfs64(const char __user *path, size_t sz,
				struct statfs64 __user *buf);
asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
				struct statfs64 __user *buf);
asmlinkage long sys_lstat(const char __user *filename,
			struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_fstat(unsigned int fd,
			struct __old_kernel_stat __user *statbuf);
asmlinkage long sys_newstat(const char __user *filename,
				struct stat __user *statbuf);
asmlinkage long sys_newlstat(const char __user *filename,
				struct stat __user *statbuf);
asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
#if BITS_PER_LONG == 32
asmlinkage long sys_stat64(const char __user *filename,
				struct stat64 __user *statbuf);
asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
asmlinkage long sys_lstat64(const char __user *filename,
				struct stat64 __user *statbuf);
asmlinkage long sys_truncate64(const char __user *path, loff_t length);
asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
#endif

asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
			     const void __user *value, size_t size, int flags);
asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
			      const void __user *value, size_t size, int flags);
asmlinkage long sys_fsetxattr(int fd, const char __user *name,
			      const void __user *value, size_t size, int flags);
asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
			     void __user *value, size_t size);
asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
			      void __user *value, size_t size);
asmlinkage long sys_fgetxattr(int fd, const char __user *name,
			      void __user *value, size_t size);
asmlinkage long sys_listxattr(const char __user *path, char __user *list,
			      size_t size);
asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
			       size_t size);
asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
asmlinkage long sys_removexattr(const char __user *path,
				const char __user *name);
asmlinkage long sys_lremovexattr(const char __user *path,
				 const char __user *name);
asmlinkage long sys_fremovexattr(int fd, const char __user *name);

asmlinkage long sys_brk(unsigned long brk);
asmlinkage long sys_mprotect(unsigned long start, size_t len,
				unsigned long prot);
asmlinkage long sys_mremap(unsigned long addr,
			   unsigned long old_len, unsigned long new_len,
			   unsigned long flags, unsigned long new_addr);
asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
			unsigned long prot, unsigned long pgoff,
			unsigned long flags);
asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
asmlinkage long sys_munmap(unsigned long addr, size_t len);
asmlinkage long sys_mlock(unsigned long start, size_t len);