Robert Watson 35b260cd69 Rework sofree() logic to take into account a possible race with accept(). ... Sockets in the listen queues have reference counts of 0, so if the protocol decides to disconnect the pcb and try to free the socket, this triggered a race with accept() wherein accept() would bump the reference count before sofree() had removed the socket from the listen queues, resulting in a panic in sofree() when it discovered it was freeing a referenced socket. This might happen if a RST came in prior to accept() on a TCP connection. The fix is two-fold: to expand the coverage of the accept mutex earlier in sofree() to prevent accept() from grabbing the socket after the "is it really safe to free" tests, and to expand the logic of the "is it really safe to free" tests to check that the refcount is still 0 (i.e., we didn't race). RELENG_5 candidate. Much discussion with and work by: green Reported by: Marc UBM Bocklet <ubm at u-boot-man dot de> Reported by: Vlad <marchenko at gmail dot com>		2004-10-11 08:11:26 +00:00
..
bus_if.m	Minor formatting fixes for lines > 80 characters	2004-08-12 17:26:22 +00:00
clock_if.m
device_if.m	Minor formatting fixes for lines > 80 characters	2004-08-12 17:26:22 +00:00
genassym.sh
imgact_aout.c	Change the types of vn_rdwr_inchunks()'s len and aresid arguments to	2004-06-05 02:18:28 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c	On arm, set the default elf brand to FreeBSD, until the binutils do it for us.	2004-09-23 23:29:24 +00:00
imgact_gzip.c
imgact_shell.c
inflate.c
init_main.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
init_sysent.c	Regen to unbreak world.	2004-10-07 01:09:46 +00:00
kern_acct.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_acl.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
kern_alq.c
kern_clock.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_condvar.c	Now that the return value semantics of cv's for multithreaded processes	2004-08-19 11:31:42 +00:00
kern_conf.c	Fix a LOR relating to freeing cdevs.	2004-10-01 06:33:39 +00:00
kern_context.c
kern_descrip.c	Another case where we need to guard against a partially	2004-10-04 06:45:48 +00:00
kern_environment.c
kern_event.c	unlock global lock in kqueue_scan before msleep'ing to prevent dead	2004-09-14 18:38:16 +00:00
kern_exec.c	Add an execve command for kse_thr_interrupt to allow libpthread to	2004-10-07 13:50:10 +00:00
kern_exit.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_fork.c	Back out rev 1.240; it is unnecessary. In particular,	2004-10-06 23:53:49 +00:00
kern_idle.c	Give the 4bsd scheduler the ability to wake up idle processors	2004-09-01 06:42:02 +00:00
kern_intr.c	Refactor a bunch of scheduler code to give basically the same behaviour	2004-09-05 02:09:54 +00:00
kern_jail.c	Add two missing includes and remove two uneeded.	2004-06-27 09:03:22 +00:00
kern_kse.c	Add an execve command for kse_thr_interrupt to allow libpthread to	2004-10-07 13:50:10 +00:00
kern_kthread.c	Give setrunqueue() and sched_add() more of a clue as to	2004-09-01 02:11:28 +00:00
kern_ktr.c	Remove unused macro.	2004-09-20 19:01:44 +00:00
kern_ktrace.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
kern_linker.c	When trying each linker class in turn with a preloaded module, exit	2004-08-27 01:20:26 +00:00
kern_lock.c	Reintroduce slightly modified patch from kern/69964. Check for	2004-08-27 01:41:28 +00:00
kern_lockf.c
kern_mac.c	Do a pass over all modules in the kernel and make them return EOPNOTSUPP	2004-07-15 08:26:07 +00:00
kern_malloc.c	Turn VM_KMEM_SIZE_MAX and VM_KMEM_SIZE_SCALE into tunables.	2004-09-29 14:21:40 +00:00
kern_mbuf.c	CTASSERT that MSZIE is a power of 2 (otherwise dtom() breaks)	2004-09-20 08:52:04 +00:00
kern_mib.c
kern_module.c	Don't bother calling the module event handlers from module_shutdown()	2004-08-20 21:47:48 +00:00
kern_mtxpool.c
kern_mutex.c	Turn PREEMPTION into a kernel option. Make sure that it's defined if	2004-09-02 18:59:15 +00:00
kern_ntptime.c
kern_physio.c	Eliminate DEV_STRATEGY() macro: call dev_strategy() directly.	2004-09-23 14:45:04 +00:00
kern_poll.c	Add a NULL param to an mi_switch() that I missed.	2004-07-03 02:38:03 +00:00
kern_proc.c	Remove duplicate line.	2004-10-10 05:07:43 +00:00
kern_prot.c	Remove sched_free_thread() which was only used	2004-08-31 06:12:13 +00:00
kern_resource.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_sema.c	Change the return value of sema_timedwait() so it returns 0 on	2004-06-14 18:19:05 +00:00
kern_shutdown.c	Change the perfectly precise message	2004-10-04 13:13:23 +00:00
kern_sig.c	Use scheduler api to adjust thread priority.	2004-10-05 09:10:30 +00:00
kern_subr.c	Clean up and wash struct iovec and struct uio handling.	2004-07-10 15:42:16 +00:00
kern_switch.c	Don't release the slot twice.. sched_rem() has already done it.	2004-10-10 05:19:22 +00:00
kern_sx.c
kern_synch.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_syscalls.c	Do a pass over all modules in the kernel and make them return EOPNOTSUPP	2004-07-15 08:26:07 +00:00
kern_sysctl.c	Avoid casts as lvalues.	2004-07-28 06:42:41 +00:00
kern_tc.c	Add some KASSERTS.	2004-08-14 08:33:49 +00:00
kern_thr.c	Close a race between a thread exiting and the freeing of it's stack.	2004-10-06 14:23:00 +00:00
kern_thread.c	In original kern_execve() code, at the start of the function, it forces	2004-10-06 00:40:41 +00:00
kern_time.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
kern_timeout.c	Cut a KTR record whenever a callout is invoked. Mark whether it runs	2004-08-06 21:49:00 +00:00
kern_umtx.c	writers must hold both sched_lock and the process lock; therefore, readers	2004-07-12 15:28:31 +00:00
kern_uuid.c
kern_xxx.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
ksched.c
link_elf_obj.c	Add support for completing the installation of ELF relocatable	2004-08-29 01:21:51 +00:00
link_elf.c	Normalize the VM wiring done with SPARSE_MAPPING: check for errors, and	2004-08-09 18:46:13 +00:00
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c
sched_4bsd.c	When preempting a thread, put it back on the HEAD of its run queue.	2004-10-05 22:03:10 +00:00
sched_ule.c	Fix whitespace botch that only showed up in the commit message diff :-/	2004-10-05 22:14:02 +00:00
subr_acl_posix1e.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
subr_autoconf.c
subr_blist.c	Move the definitions of SWAPBLK_NONE and SWAPBLK_MASK from vm_page.h to	2004-06-04 04:03:26 +00:00
subr_bus.c	Fix BUS_DEBUG case	2004-08-30 05:48:49 +00:00
subr_clist.c	Preparation commit for the tty cleanups that will follow in the near	2004-07-15 20:47:41 +00:00
subr_clock.c
subr_devstat.c	Do the dreaded s/dev_t/struct cdev */	2004-06-16 09:47:26 +00:00
subr_disk.c	Add bioq_takefirst().	2004-08-19 19:51:51 +00:00
subr_eventhandler.c
subr_hints.c
subr_kdb.c	Fix a bug introduced in the previous commit: kdb_cpu_trap() gets to	2004-09-26 06:48:59 +00:00
subr_kobj.c
subr_log.c	Do the dreaded s/dev_t/struct cdev */	2004-06-16 09:47:26 +00:00
subr_mbpool.c
subr_mchain.c
subr_module.c
subr_msgbuf.c
subr_param.c
subr_pcpu.c
subr_power.c
subr_prf.c	Update for the KDB framework:	2004-07-10 21:43:23 +00:00
subr_prof.c	- Move TDF_OWEPREEMPT, TDF_OWEUPC, and TDF_USTATCLOCK over to td_pflags	2004-07-16 21:04:55 +00:00
subr_rman.c	Add a newline.	2004-08-19 20:16:09 +00:00
subr_rtc.c
subr_sbuf.c	Cosmetic adjustment to previous commit: name the second argument to	2004-07-09 11:37:44 +00:00
subr_scanf.c
subr_sleepqueue.c	Now that the return value semantics of cv's for multithreaded processes	2004-08-19 11:31:42 +00:00
subr_smp.c	Move 4bsd specific experimental IP code into the 4bsd file.	2004-09-03 07:42:31 +00:00
subr_taskqueue.c	Add taskqueue_drain. This waits for the specified task to finish, if	2004-10-05 04:16:01 +00:00
subr_trap.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
subr_turnstile.c	Add a critical section in turnstile_unpend() from before dropping the	2004-10-05 18:00:30 +00:00
subr_unit.c	Fix a typo to fix the !DIAGNOSTIC build.	2004-09-30 18:13:18 +00:00
subr_witness.c	Don't "implicitly order all sleep locks before spin locks" in witness	2004-10-09 08:16:37 +00:00
sys_generic.c	Poll() uses the array smallbits that is big enough to hold 32 struct	2004-08-27 21:23:50 +00:00
sys_pipe.c	Major enhancements to pipe memory usage:	2004-08-16 01:27:24 +00:00
sys_process.c	Add pl_flags to ptrace_lwpinfo, two flags PL_FLAG_SA and PL_FLAG_BOUND	2004-08-08 22:26:11 +00:00
sys_socket.c	Push Giant acquisition down into fo_stat() from most callers. Acquire	2004-07-22 20:40:23 +00:00
syscalls.c	Give kldunload a -f(orce) argument.	2004-07-13 19:36:59 +00:00
syscalls.master	Regen to unbreak world.	2004-10-07 01:09:46 +00:00
sysv_ipc.c
sysv_msg.c	Add missing #include <sys/module.h>	2004-05-30 20:34:58 +00:00
sysv_sem.c	Add missing #include <sys/module.h>	2004-05-30 20:34:58 +00:00
sysv_shm.c	Push Giant deep into vm_forkproc(), acquiring it only if the process has	2004-09-03 05:11:32 +00:00
tty_compat.c	Put the pre FreeBSD-2.x tty compat code under BURN_BRIDGES.	2004-06-21 22:57:16 +00:00
tty_conf.c	Preparation commit for the tty cleanups that will follow in the near	2004-07-15 20:47:41 +00:00
tty_cons.c	Hold threadcount reference when we call into the underlying console	2004-09-24 07:16:56 +00:00
tty_pty.c	Split the ioctl function in control and slave side, this eliminated	2004-09-23 16:13:46 +00:00
tty_subr.c	Preparation commit for the tty cleanups that will follow in the near	2004-07-15 20:47:41 +00:00
tty_tty.c	Second half of the dev_t cleanup.	2004-06-17 17:16:53 +00:00
tty.c	Rework how we store process times in the kernel such that we always store	2004-10-05 18:51:11 +00:00
uipc_accf.c	Add a global mutex, accept_filter_mtx, to protect the global list of	2004-06-01 04:08:48 +00:00
uipc_cow.c
uipc_domain.c
uipc_jumbo.c	Use kmem_alloc_nofault() rather than kmem_alloc_pageable() for allocating	2004-07-23 19:36:18 +00:00
uipc_mbuf2.c	Revert last commit since it breaks API.	2004-10-10 09:16:48 +00:00
uipc_mbuf.c	improve the mbuf m_print function.. Only pull length from pkthdr if there	2004-09-28 18:40:18 +00:00
uipc_proto.c
uipc_sem.c	Add missing #include <sys/module.h>	2004-05-30 20:34:58 +00:00
uipc_sockbuf.c	Add locking to the kqueue subsystem. This also makes the kqueue subsystem	2004-08-15 06:24:42 +00:00
uipc_socket2.c	Add locking to the kqueue subsystem. This also makes the kqueue subsystem	2004-08-15 06:24:42 +00:00
uipc_socket.c	Rework sofree() logic to take into account a possible race with accept().	2004-10-11 08:11:26 +00:00
uipc_syscalls.c	Add a SOCKBUF_LOCK() to a rarely executed path in do_sendfile().	2004-10-02 05:37:47 +00:00
uipc_usrreq.c	Don't hold the UNIX domain socket subsystem lock over the body of the	2004-08-25 21:24:36 +00:00
vfs_acl.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
vfs_aio.c	cover soreadable and sowriteable with the corresponding socketbuffer locks.	2004-10-01 05:54:06 +00:00
vfs_bio.c	use dev_re[fl]thread() rather than home rolled versions.	2004-09-24 05:55:03 +00:00
vfs_cache.c
vfs_cluster.c	Give cluster_write() an explicit vnode argument.	2004-09-27 19:14:10 +00:00
vfs_default.c	Use vn_isdisk() to check if vnode is a disk.	2004-09-24 06:23:31 +00:00
vfs_export.c	Make VFS_ROOT() and vflush() take a thread argument.	2004-07-12 08:14:09 +00:00
vfs_extattr.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
vfs_init.c	Simplify initialization of va_null a little bit.	2004-09-15 21:42:03 +00:00
vfs_lookup.c	Assert Giant in namei(). Bugs have been reported in which, following	2004-08-04 18:39:07 +00:00
vfs_mount.c	Back out changes which were introduced to delay mounting root file system.	2004-10-05 11:26:43 +00:00
vfs_subr.c	vtryrecycle: Don't rely on type VBAD alone to mean that we don't need	2004-10-06 02:09:59 +00:00
vfs_syscalls.c	Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is	2004-07-26 07:24:04 +00:00
vfs_vnops.c	Hold dev_lock and check for NULL devsw pointer when we service FIODTYPE ioctl.	2004-09-24 06:16:48 +00:00
vnode_if.src	Remove the buffercache/vnode side of BIO_DELETE processing in	2004-09-13 06:50:42 +00:00