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freebsd-nq/sys/kern
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Mikolaj Golub 3204c8e596 In soreceive_generic(), if MSG_WAITALL is set but the request is 
larger than the receive buffer, we have to receive in sections.
When notifying the protocol that some data has been drained the
lock is released for a moment. Returning we block waiting for the
rest of data. There is a race, when data could arrive while the
lock was released and then the connection stalls in sbwait.

Fix this by checking for data before blocking and skip blocking
if there are some.

PR:		kern/154504
Reported by:	Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua>
Tested by:	Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua>
Reviewed by:	rwatson
Approved by:	kib (co-mentor)
MFC after:	2 weeks
2011-05-29 18:00:50 +00:00
..
bus_if.m Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a 2011-04-29 21:36:45 +00:00
capabilities.conf Continue to introduce Capsicum Capability Mode support: 2011-03-01 13:28:27 +00:00
clock_if.m
cpufreq_if.m
device_if.m Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is 2011-05-24 13:22:40 +00:00
genassym.sh
imgact_aout.c Add accounting for most of the memory-related resources. 2011-04-05 20:23:59 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Add accounting for most of the memory-related resources. 2011-04-05 20:23:59 +00:00
imgact_gzip.c Add accounting for most of the memory-related resources. 2011-04-05 20:23:59 +00:00
imgact_shell.c The execution of the shebang script requires putting interpreter path, 2011-03-06 22:59:30 +00:00
inflate.c
init_main.c Enable accounting for RACCT_NPROC and RACCT_NTHR. 2011-03-31 19:22:11 +00:00
init_sysent.c Regen. 2011-04-18 16:32:47 +00:00
kern_acct.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_alq.c - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
kern_clock.c Fix several places to ignore processes that are not yet fully constructed. 2011-04-06 17:47:22 +00:00
kern_clocksource.c better integrate cyclic module with clocksource/eventtimer subsystem 2011-05-16 15:29:59 +00:00
kern_condvar.c
kern_conf.c The CDP_ACTIVE flag is cleared at the beginning of destroy_devl(), 2011-05-18 22:36:58 +00:00
kern_cons.c Add descriptions to a handful of sysctl nodes. 2010-08-09 14:48:31 +00:00
kern_context.c Clear the padding when returning context to the usermode, for 2011-02-05 15:10:27 +00:00
kern_cpu.c cpufreq: allocate long-lived buffer for handling of sysctl requests 2010-07-23 16:46:42 +00:00
kern_cpuset.c Merge r221912 from largeSMP project branch: 2011-05-22 21:35:03 +00:00
kern_ctf.c
kern_descrip.c - Do no try to drop a NULL filedesc pointer. 2011-05-12 10:56:33 +00:00
kern_dtrace.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
kern_environment.c In init_dynamic_kenv(), ignore environment strings exceeding the 2011-05-23 16:40:44 +00:00
kern_et.c sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly. 2011-01-12 19:54:19 +00:00
kern_event.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
kern_exec.c Introduce preliminary support of the show description of the ABI of 2011-02-25 22:05:33 +00:00
kern_exit.c Remove stale M_ZOMBIE malloc type. 2011-04-14 14:25:47 +00:00
kern_fail.c Initialize fp_location for explicitly managed fail points, and push 2010-12-21 18:23:03 +00:00
kern_fork.c Enable accounting for RACCT_NPROC and RACCT_NTHR. 2011-03-31 19:22:11 +00:00
kern_gzio.c Do not set IO_NODELOCKED while writing to vnodes as our consumers 2010-04-30 03:10:53 +00:00
kern_hhook.c Staticize malloc types. 2011-04-13 11:28:46 +00:00
kern_idle.c Split P_NOLOAD into a per-thread flag (TDF_NOLOAD). 2009-11-03 16:46:52 +00:00
kern_intr.c - Catch up to falloc() changes. 2011-04-26 07:30:52 +00:00
kern_jail.c Change the way rctl interfaces with jails by introducing prison_racct 2011-05-03 07:32:58 +00:00
kern_khelp.c Use the full and proper company name for Swinburne University of Technology 2011-04-12 08:13:18 +00:00
kern_kthread.c - Properly initialize the base priority (td_base_pri) of thread0 to PVM 2011-01-06 22:26:00 +00:00
kern_ktr.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
kern_ktrace.c Fix several places to ignore processes that are not yet fully constructed. 2011-04-06 17:47:22 +00:00
kern_linker.c Provide compat32 shims for kldstat(2). 2011-03-30 14:46:12 +00:00
kern_lock.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
kern_lockf.c In lf_iteratelocks_vnode, increment state->ls_threads around iterating 2009-06-25 18:54:56 +00:00
kern_lockstat.c Add the OpenSolaris dtrace lockstat provider. The lockstat provider 2009-05-26 20:28:22 +00:00
kern_loginclass.c Add racct. It's an API to keep per-process, per-jail, per-loginclass 2011-03-29 17:47:25 +00:00
kern_malloc.c Modestly increase the maximum allowed size of the kmem map on i386. 2011-03-23 16:38:29 +00:00
kern_mbuf.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_mib.c sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly. 2011-01-12 19:54:19 +00:00
kern_module.c Style fix. 2010-11-22 15:28:54 +00:00
kern_mtxpool.c
kern_mutex.c - Remove <machine/mutex.h>. Most of the headers were empty, and the 2010-11-09 20:46:41 +00:00
kern_ntptime.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
kern_osd.c Make the rmlock(9) interface a bit more like the rwlock(9) interface: 2009-05-29 10:52:37 +00:00
kern_physio.c Account i/o done on cdevs. 2010-11-25 20:05:11 +00:00
kern_pmc.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
kern_poll.c Rather than fix questionable ifnet list locking in the implementation of 2009-08-15 23:07:43 +00:00
kern_priv.c Add an extra comment to the SDT probes definition. This allows us to get 2010-08-22 11:18:57 +00:00
kern_proc.c - Commit work from libprocstat project. These patches add support for runtime 2011-05-12 10:11:39 +00:00
kern_prot.c Notify racct when process credentials change. 2011-03-31 18:12:04 +00:00
kern_racct.c Remove definitions for RACCT_FSIZE and RACCT_SBSIZE - these two are rather 2011-05-27 19:57:58 +00:00
kern_rctl.c Remove definitions for RACCT_FSIZE and RACCT_SBSIZE - these two are rather 2011-05-27 19:57:58 +00:00
kern_resource.c Fix several places to ignore processes that are not yet fully constructed. 2011-04-06 17:47:22 +00:00
kern_rmlock.c No need to include sys/systm.h twice. 2010-11-16 14:08:21 +00:00
kern_rwlock.c Print the pointer to the lock with the panic message. The previous 2010-03-24 19:21:26 +00:00
kern_sdt.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_sema.c
kern_shutdown.c Add the watchdogs patting during the (shutdown time) disk syncing and 2011-04-28 16:02:05 +00:00
kern_sig.c Fix support for RACCT_CORE by merging forgotten file. 2011-05-26 18:54:07 +00:00
kern_switch.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_sx.c - Merge changes to the base system to support OFED. These include 2011-03-21 09:40:01 +00:00
kern_synch.c Simplify a stale assertion. We have not called mi_switch() from a nested 2011-05-24 13:17:08 +00:00
kern_syscalls.c Call chainevh callback when we are invoked with neither MOD_LOAD nor 2010-10-21 20:31:50 +00:00
kern_sysctl.c Use a name instead of a magic number for kern_yield(9) when the priority 2011-05-13 05:27:58 +00:00
kern_tc.c Introduce signed and unsigned version of CTLTYPE_QUAD, renaming 2011-01-19 23:00:25 +00:00
kern_thr.c Enable accounting for RACCT_NPROC and RACCT_NTHR. 2011-03-31 19:22:11 +00:00
kern_thread.c Fix some locking nits with the p_state field of struct proc: 2011-03-24 18:40:11 +00:00
kern_time.c Create a global thread hash table to speed up thread lookup, use 2010-10-09 02:50:23 +00:00
kern_timeout.c Reintroduce the fix already discussed in r216805 (please check its history 2011-04-08 18:48:57 +00:00
kern_umtx.c Expose the umtx_key structure and API to the rest of the kernel. 2011-02-23 13:19:14 +00:00
kern_uuid.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
kern_xxx.c Place hostnames and similar information fully under the prison system. 2009-05-29 21:27:12 +00:00
ksched.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
link_elf_obj.c Remove malloc(9) return value checks when M_WAITOK is used. 2011-04-16 16:20:51 +00:00
link_elf.c Remove malloc(9) return value checks when M_WAITOK is used. 2011-04-16 16:20:51 +00:00
linker_if.m strict kobj signatures: linker_if fixes 2009-06-11 17:05:45 +00:00
Make.tags.inc
Makefile Continue to introduce Capsicum Capability Mode support: 2011-03-01 13:28:27 +00:00
makesyscalls.sh add DTrace systrace support for linux32 and freebsd32 on amd64 syscalls 2011-03-12 08:51:43 +00:00
md4c.c
md5c.c
p1003_1b.c Set various POSIX capability sysctls to the version of the API that is 2010-11-19 17:56:16 +00:00
posix4_mib.c Set various POSIX capability sysctls to the version of the API that is 2010-11-19 17:56:16 +00:00
sched_4bsd.c Merge r221285 from largeSMP project: 2011-05-17 22:14:00 +00:00
sched_ule.c Clearing the flag when preempting will let the preempted thread run 2011-03-31 13:59:47 +00:00
serdev_if.m
stack_protector.c Random number generator initialization cleanup: 2009-10-20 16:36:51 +00:00
subr_acl_nfs4.c Make UFS use PSARC/2010/029 NFSv4 ACL semantics by default, bringing 2011-03-22 19:52:29 +00:00
subr_acl_posix1e.c execve(2) has a special check for file permissions: a file must have at 2010-08-30 16:30:18 +00:00
subr_autoconf.c Retire PCONFIG and leave the priority of thread0 alone when waiting for 2011-01-06 22:09:37 +00:00
subr_blist.c
subr_bufring.c Switch to our preferred 2-clause BSD license. 2010-05-05 20:39:02 +00:00
subr_bus.c Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a 2011-04-29 21:36:45 +00:00
subr_clock.c Improve style and wording of comments and sysctl descriptions [1]. 2011-01-09 14:34:56 +00:00
subr_devstat.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
subr_disk.c Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic. 2010-09-02 19:40:28 +00:00
subr_eventhandler.c Split eventhandler_register() into an internal part and a wrapper function 2010-03-19 19:51:03 +00:00
subr_fattime.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_firmware.c Bump up the firmware_table from 30 to 50. bwn needs more than 30, it 2010-03-07 22:37:35 +00:00
subr_hash.c Decompose the most lousy named file in sys/kern; kern_subr.c. 2010-02-21 19:53:33 +00:00
subr_hints.c
subr_kdb.c Modify kdb_trap() so that it re-calls the dbbe_trap function as long as 2011-02-18 22:25:11 +00:00
subr_kobj.c sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly. 2011-01-12 19:54:19 +00:00
subr_lock.c Explicitly wire the user buffer rather than doing it implicitly in 2011-01-27 00:34:12 +00:00
subr_log.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
subr_mbpool.c
subr_mchain.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
subr_module.c Provide convenience function for obtaining MODINFO_ADDR and MODINFO_SIZE 2011-02-09 19:08:21 +00:00
subr_msgbuf.c
subr_param.c Modestly increase the maximum allowed size of the kmem map on i386. 2011-03-23 16:38:29 +00:00
subr_pcpu.c Remove unneeded includes of <sys/linker_set.h>. Other headers that use 2011-01-11 13:59:06 +00:00
subr_power.c
subr_prf.c Use type-specific inline function imax() instead of deprecated macro MAX(). 2010-07-12 15:32:45 +00:00
subr_prof.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
subr_rman.c Extend the rman(9) API to support altering an existing resource. 2011-04-29 20:05:19 +00:00
subr_rtc.c Add the half of time-of-day clock resolution when we adjust system time from 2010-08-12 17:17:05 +00:00
subr_sbuf.c Use memset() instead of bzero() and memcpy() instead of bcopy(), there 2011-05-17 11:04:50 +00:00
subr_scanf.c
subr_sglist.c This patch fixes two bugs in sglist(9) and improves robustness of the API via 2009-08-21 02:59:07 +00:00
subr_sleepqueue.c Explicitly wire the user buffer rather than doing it implicitly in 2011-01-27 00:34:12 +00:00
subr_smp.c Silly spelling typos. 2011-05-24 19:55:57 +00:00
subr_stack.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
subr_taskqueue.c Implement the delayed task execution extension to the taskqueue 2011-04-26 11:39:56 +00:00
subr_trap.c Continue introducing Capsicum capability mode support: 2011-03-01 13:32:07 +00:00
subr_turnstile.c Always assert that the turnstile chain lock is held in turnstile_wait() 2011-02-04 14:16:41 +00:00
subr_uio.c Fix the check for vm_map_remove() error. 2011-03-28 19:44:54 +00:00
subr_unit.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
subr_witness.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
sys_capability.c - Add a FEATURE for capsicum (security_capabilities). 2011-03-04 09:03:54 +00:00
sys_generic.c For some file types, select code registers two selfd structures. E.g., 2010-08-28 17:42:08 +00:00
sys_pipe.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
sys_process.c Add macro to test the sv_flags of any process. Change some places to test 2011-01-26 20:03:58 +00:00
sys_socket.c Mfp4 CH=177274,177280,177284-177285,177297,177324-177325 2011-02-16 21:29:13 +00:00
syscalls.c Regen. 2011-04-18 16:32:47 +00:00
syscalls.master Add the posix_fallocate(2) syscall. The default implementation in 2011-04-18 16:32:22 +00:00
systrace_args.c Regen. 2011-04-18 16:32:47 +00:00
sysv_ipc.c Move SysV IPC freebsd32 compat shims helpers from freebsd32_misc.c to 2010-03-19 11:01:51 +00:00
sysv_msg.c Style fix. 2011-04-06 19:08:50 +00:00
sysv_sem.c Style fix. 2011-04-06 19:08:50 +00:00
sysv_shm.c Style fix. 2011-04-06 19:08:50 +00:00
tty_compat.c Make TIOCSTI work again. 2010-01-04 20:59:52 +00:00
tty_info.c Print an extra newline when not at the first column already. 2009-05-17 16:17:48 +00:00
tty_inq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_outq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_pts.c Add accounting for RACCT_NPTS. 2011-04-02 15:02:42 +00:00
tty_tty.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
tty_ttydisc.c Print backspaces after echoing an EOF. 2009-10-17 08:59:41 +00:00
tty.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
uipc_accf.c (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument. 2009-12-28 22:56:30 +00:00
uipc_cow.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
uipc_debug.c Add missing socket options. 2009-05-26 09:19:21 +00:00
uipc_domain.c When registering a protocol to an existing protocol domain via 2009-08-24 10:03:41 +00:00
uipc_mbuf2.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
uipc_mbuf.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
uipc_mqueue.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
uipc_sem.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
uipc_shm.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
uipc_sockbuf.c Revert r194662, since it breaks ng_ksocket(4) and may break 2011-04-14 14:54:22 +00:00
uipc_socket.c In soreceive_generic(), if MSG_WAITALL is set but the request is 2011-05-29 18:00:50 +00:00
uipc_syscalls.c After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9) 2011-04-01 13:28:34 +00:00
uipc_usrreq.c Mfp4 CH=177274,177280,177284-177285,177297,177324-177325 2011-02-16 21:29:13 +00:00
vfs_acl.c The 'acl_cnt' field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:45:27 +00:00
vfs_aio.c Create a global thread hash table to speed up thread lookup, use 2010-10-09 02:50:23 +00:00
vfs_bio.c BKVASIZE was bumped to 16k more than a decade ago. 2011-05-23 19:59:01 +00:00
vfs_cache.c Fix some more style(9) issues. 2010-11-14 16:10:15 +00:00
vfs_cluster.c The hardware has caught up; improvements are now observed even at 128, 2011-03-16 16:22:59 +00:00
vfs_default.c Add a lock flags argument to the VFS_FHTOVP() file system 2011-05-22 01:07:54 +00:00
vfs_export.c Set the prison in NFS anon and GSS SVC creds. 2009-09-28 18:07:16 +00:00
vfs_extattr.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
vfs_hash.c
vfs_init.c
vfs_lookup.c Add an extra comment to the SDT probes definition. This allows us to get 2010-08-22 11:18:57 +00:00
vfs_mount.c Use a name instead of a magic number for kern_yield(9) when the priority 2011-05-13 05:27:58 +00:00
vfs_mountroot.c Make RB_CDROM work. This should probably check for a disc in cd1 and acd1 2011-01-08 19:50:13 +00:00
vfs_subr.c Use a name instead of a magic number for kern_yield(9) when the priority 2011-05-13 05:27:58 +00:00
vfs_syscalls.c Add a lock flags argument to the VFS_FHTOVP() file system 2011-05-22 01:07:54 +00:00
vfs_vnops.c Use a name instead of a magic number for kern_yield(9) when the priority 2011-05-13 05:27:58 +00:00
vnode_if.src Correctly use INOUT for the offset/len parameters to vop_allocate. As 2011-05-13 14:29:28 +00:00