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|
2007-12-11 Martin Hunt <hunt@redhat.com>
PR5368
* relay_old.c (init_oldrelayfs): Don't start threads
if load_only.
* relay.c (init_relayfs): Ditto.
2007-11-09 Martin Hunt <hunt@redhat.com>
* mainloop.c (stp_main_loop): Bump recvbuf to 8196 for
compatibility with old transport.
2007-10-26 Martin Hunt <hunt@redhat.com>
PR5218
* stapio.c (main): Set initialized properly when
attached.
2007-10-12 Martin Hunt <hunt@redhat.com>
Changes to separate the symbols from the command channel.
* cap.c (init_cap): Add CAP_DAC_OVERRIDE.
* staprun.h: Change init_ctl_channel prototype.
* ctl.c (init_ctl_channel): Modify to open either
a command or symbol channel. Use ".cmd" and ".symbols"
as the new names.
* mainloop.c (init_stapio): Call init_ctl_channel(0);
* staprun.c (cleanup): Call stop_symbol_thread().
(main): Call start_symbol_thread().
* staprun_funcs.c (handle_symbols): Make a thread.
(start_symbol_thread): New.
(stop_symbol_thread): New.
2007-10-11 Frank Ch. Eigler <fche@elastic.org>
* staprun.c (main): Move checks for init_cap and getuid
from just before command line argument parsing to just after.
2007-10-09 Martin Hunt <hunt@redhat.com>
* common.c (set_clexec): New.
* staprun.h: Add prototype for set_clexec.
* relay*.c, ctl.c: Call set_clexec after
file opens.
2007-09-14 Martin Hunt <hunt@redhat.com>
* ctl.c (init_ctl_channel): Return 1 if the ctl file opened
was for the old relayfs transport.
* mainloop.c (init_stapio): Don't call using_old_transport().
Use the return of init_ctl_channel() instead.
(using_old_transport): Deleted.
2007-08-31 Martin Hunt <hunt@redhat.com>
* mainloop.c (start_cmd): Set the priority to
forked processes back to normal.
(system_cmd): Ditto.
2007-08-21 Martin Hunt <hunt@redhat.com>
* mainloop.c (start_cmd): Send SIGINT to target_cmd,
not stapio.
2007-08-20 David Smith <dsmith@redhat.com>
From Lai Jiangshan <laijs@cn.fujitsu.com>
* common.c (parse_args): Make sure the '-c' and '-x' options can't
be specified together.
2007-08-15 David Smith <dsmith@redhat.com>
* staprun.c (main): Quit if effective uid is not root.
2007-08-15 Martin Hunt <hunt@redhat.com>
PR4736
* staprun.c (cleanup): Set priority back to normal
before removing module.
2007-08-15 Martin Hunt <hunt@redhat.com>
* stap_merge.tcl: New.
2007-08-14 David Smith <dsmith@redhat.com>
Merge from setuid-branch. Changes also by Martin Hunt
<hunt@redhat.com>.
* staprun.c (init_staprun): Drop CAP_SYS_ADMIN when we're done
with it.
(main): Calls parse_modpath instead of path_parse_modname. Just
call parse_modpath with argv[optind]. Let it allocate and set
modpath and modname. If no modulename was given, display usage
and exit. Drop CAP_SYS_NICE when we're done with it. Set
atexit(exit_cleanup) so cleanup always gets called and modules get
removed. Call handle_symbols.
(run_stapio): Set argv[0] to stapio so that it executes as itself
instead of staprun.
(cleanup): Only do cleanups once and only try to remove module
when appropriate.
(exit_cleanup): New. Calls cleanup().
(mountfs): Sets uid to root before making directory and then
restores uid.
(setup_ctl_channel): Uses DEBUGFS define and improved
error message.
(setup_relayfs): Ditto.
(setup_oldrelayfs): Uses DEBUGFS and RELAYFS defines.
(run_stp_check): Replaced by mountfs().
(mountfs): New function. Replaces an external script with C code.
(init_staprun): Calls mountfs() instead of run_stp_check().
* staprun.h: Renamed path_parse_modname to parse_modpath. Added
MODULE_NAME_LEN define. Added [_][p]err macros. Removed
VERSION_CMD.
* mainloop.c (cleanup_and_exit): Make sure initialized is 2
before exiting with code 2.
(stp_main_loop): Set initialized to 2 when STP_TRANSPORT
is received. Call cleanup_and_exit() with proper status.
(start_cmd): exit 1 instead of -1.
(system_cmd): Ditto.
(init_staprun): Renamed init_stapio.
(cleanup_and_exit): Set exit status.
* cap.c: New file.
* common.c: New file.
* stapio.c: New file.
* staprun_funcs.c: New file.
* Makefile: Removed.
* symbols.c (get_sections): Move the filter code up so that
uninteresting section names are filtered out before
attempting to open them.
(do_kernel_symbols): Better detect overfow conditions and realloc
new space.
(do_module): After sending all modules, send a null message to
indicate we are finished.
* ctl.c (init_ctl_channel): When attempting to attach, if the
control channel doesn't exist, print a better error message.
* relay_old.c (init_oldrelayfs): Errors out if
open_relayfs_files() couldn't open any files.
PR 4795
* mainloop.c (send_request): Fixed buffer overflow check.
* staprun.h: Added buffer overflow checking versions of
strcpy/sprintf/snprintf.
* common.c (path_parse_modname): Checks for overflows on
strcpy/sprintf/snprintf.
(read_buffer_info): Ditto.
* ctl.c (init_ctl_channel): Ditto.
* relay.c (init_relayfs): Ditto.
* relay_old.c (open_relayfs_files): Ditto.
(init_oldrelayfs): Ditto.
* staprun_funcs.c (insert_module): Ditto.
(check_path): Ditto.
* symbols.c (get_sections): Ditto.
2007-07-09 David Smith <dsmith@redhat.com>
* relay.c (init_relayfs): Fixed a buffer size bug introduced by
the last change.
2007-07-09 David Smith <dsmith@redhat.com>
* relay.c (init_relayfs): Make sure buffers are big enough to hold
a full path.
* relay_old.c (init_oldrelayfs): Ditto.
2007-07-09 David Smith <dsmith@redhat.com>
* ctl.c (read_buffer_info): Make sure buffer is big enough to hold
a full path.
(init_ctl_channel): Ditto.
2007-07-02 Martin Hunt <hunt@redhat.com>
* symbols.c (get_sections): Set data pointer to the lowest address
of any data section.
2007-06-21 Martin Hunt <hunt@redhat.com>
* relay.c (init_relayfs): Send message to check for bulkmode.
2007-06-20 Martin Hunt <hunt@redhat.com>
* stap_merge.c (main): Add verbose option. Will realloc
buffer if current size is too small. Check return codes
from writes so gcc won't complain.
2007-06-07 Martin Hunt <hunt@redhat.com>
* relay_old.c (open_relayfs_files): Add support for
output file names (-o) with bulk (relayfs) mode.
2007-06-04 Martin Hunt <hunt@redhat.com>
* mainloop.c (cleanup_and_exit): Disable signals
while exiting.
(fatal_handler): Use return values from write() to
avoid warnings.
2007-05-24 Martin Hunt <hunt@redhat.com>
* mainloop.c (cleanup_and_exit): Fix typo.
2007-05-22 Martin Hunt <hunt@redhat.com>
* mainloop.c (init_staprun): Change dbug() call.
* relay.c: Fix ppoll() call and some race conditions involving
signals.
2007-05-10 Martin Hunt <hunt@redhat.com>
* relay.c (reader_thread): Set timeout for streaming to
200ms.
2007-05-09 Martin Hunt <hunt@redhat.com>
* relay.c (reader_thread): For bulk mode, set timeout to NULL
so ppoll never times out.
2007-05-08 Martin Hunt <hunt@redhat.com>
* relay.c (ppoll): Add a compatibility function for
glibc < 2.4.
2007-05-08 Martin Hunt <hunt@redhat.com>
Signal handler cleanup.
* mainloop.c (fatal_handler): New. Cleanly handle
unexpected fatal signals.
(setup_main_signals): New. Set signals once mainloop
is entered.
(setup_signals): New. Block certain signals during initialization.
Set handler for fatal signals.
* relay.c (reader_thread): Use ppoll(). Terminate on
SIGUSR2 after reading any remaining data.
(close_relayfs): Remove sleep hack. Send SIGUSR2 to all threads.
Runtime debug messages.
* staprun.h: Change dbug() to accept a debuglevel and
enable it.
* *.c: Modify dbug() calls.
2007-05-07 Martin Hunt <hunt@redhat.com>
Patch from David Smith
* mainloop.c (stp_main_loop): Properly handle write()
return value. Fixes build problem with some compilers.
2007-04-10 Martin Hunt <hunt@redhat.com>
* relay.c (close_relayfs): Give threads some time to
run before closing.
2007-04-06 Martin Hunt <hunt@redhat.com>
* stp_merge.c (main): Remove extra newline in output.
* stap_merge.c: Renamed from stp_merge.c.
* Makefile: Updated.
2007-04-02 Martin Hunt <hunt@redhat.com>
* relay_old.c (close_oldrelayfs): If just detaching, call
pthread_cancel.
(open_relayfs_files): Just return 0 if relay_fd[cpu] not opened.
(init_oldrelayfs): Scan percpu files to calculate ncpus.
* mainloop.c (init_staprun): Call old transport init when necessary.
(cleanup_and_exit): Ignore signals when cleaning up.
* ctl.c (read_buffer_info): For old transport, need to read transport
parameters.
2007-03-26 Martin Hunt <hunt@redhat.com>
* mainloop.c (run_stp_check): Just use system() call.
(init_staprun): Remove _stp_pid module parameter.
(cleanup_and_exit): If closed==2, just exit without removing module.
(driver_poll): Remove. We no longer require stap running.
(_stp_main_loop): Remove call to driver_poll.
* ctl.c (init_ctl_channel): Don't put files in systemtap_pid,
revert back to systemtap/modulename.
* relay.c: Revert back to systemtap/modulename paths.
* relay_old.c: Ditto.
* staprun.c: Add -L and -A args.
2007-03-20 Martin Hunt <hunt@redhat.com>
* symbols.c (send_module): If send returns < 0 then
cleanup and exit.
(do_kernel_symbols): Ditto.
2007-03-18 Martin Hunt <hunt@redhat.com>
* staprun.h (err): Define.
* symbols.c (get_sections): More overflow checking.
2007-03-18 Martin Hunt <hunt@redhat.com>
* symbols.c (get_sections): Filter out .gnu.linkonce.* sections
except for .gnu.linkonce.this_module.
2007-03-18 Martin Hunt <hunt@redhat.com>
* staprun.h (VERSION_CMD): Command to use for version check.
Changes to support runtime decision on new or old transport.
* mainloop.c (init_staprun): Check the kernel version at runtime
instead of at compile time.
(cleanup_and_exit): Call the correct relayfs close function.
(stp_main_loop): Call the correct relayfs init function.
* relay.c: Remove ifdef wrapper. File is always compiled and used
if the kernel version is appropriate.
* relay_old.c: Ditto.
2007-03-14 Martin Hunt <hunt@redhat.com>
* staprun.c: Renamed from stpd.c. Removed quiet and print_only
options. Added "-x" option as an alias for "-t". Removed "-m"
option. Updated arg processing to leave 4 slots for modoptions[].
Bump the priority of staprun.
* ctl.c: New. Transport control channel functions.
* relay.c: New. Relayfs control functions for new transport.
* relay_old.c: New. Relayfs control functions for older
versions of relayfs.
* mainloop.c: New. Staprun main loop.
* staprun.h: Renamed from librelay.h. Cleaned up.
* stap_merge.c: Renamed. Updated for modified save format.
2006-12-11 Martin Hunt <hunt@redhat.com>
* symbols.c (get_sections): Set buffer sizes to large enough
sizes to hold all possible values, but also include checks in case
we are wrong.
2006-11-15 Martin Hunt <hunt@redhat.com>
* symbols.c (do_kernel_symbols): Add sizeof(long) to sym_base
to preserve 64-bit alignment.
2006-11-09 Martin Hunt <hunt@redhat.com>
* librelay.c: Change all references to transport messages
to use the new names with "_stp" prefix.
(stp_main_loop): For STP_SYMBOLS, check pointer size and
endianess to confirm staprun is compatible with the kernel.
* librelay.h: Move a bunch of common includes here.
* stpd.c: Cleanup includes.
* symbols.c: Ditto.
2006-11-02 Martin Hunt <hunt@redhat.com>
* symbols.c: New file. Sends symbol and module information to
the systemtap module.
* librelay.c (stp_main_loop): Add STP_MODULE and STP_SYMBOLS
message handling.
* librelay.h: Add some new function prototypes.
* Makefile (CFLAGS): Set to be the same as for building modules.
Added symbols.c to sources.
2006-10-10 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (merge_output): Add check for min when writing
output, otherwise last write happens twice.
2006-09-26 David Smith <dsmith@redhat.com>
* Makefile: Changed 'stpd' references to 'staprun'.
* librelay.c: Ditto.
* stpd.c: Ditto.
2006-09-25 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (kill_percpu_threads): Remove printf.
(wait_for_percpu_threads): New.
(process_subbufs): Remove processing, processing_mutex, exit
thread if exiting flag set.
(read_last_buffers): Removed.
(cleanup_and_exit): Remove call to read_last_buffers, wait for
threads to read flushed buffers instead.
(stp_main_loop): Remove mutex init.
2006-09-22 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (init_relayfs): Cleanup if stp_check fails.
2006-09-19 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (init_relayfs): Add debugfs path to relay files and
add new systemtap directory to path.
(init_stp): rmmod module on failure.
(merge_output): Remove debugging printfs left in code.
(close_relay_files): Clear relay_file descriptor after close.
(cleanup_and_exit): Allow cleanup and exit even if there was an
error opening relay files.
(stp_main_loop): Call cleanup_and_exit() if init_relayfs() fails.
2006-09-18 Martin Hunt <hunt@redhat.com>
* stpd.c (usage): Remove "-m" option.
(main): Print warning if "-m" is used.
* librelay.c (merge_output): Rewrite to handle
new format that support binary.
(stp_main_loop): Read merge option from the
transport info message.
2006-09-13 Martin Hunt <hunt@redhat.com>
* librelay.c (init_relayfs): Exec stp_check and find
relay_filebase.
* librelay.h (stp_main_loop): Fix declaration of init_stp().
* stpd.c (usage): Remove "-r" option.
(main): Don't find stpd_filebase and don't send it to init_stp().
2006-08-02 Tom Zanussi <zanussi@us.ibm.com>
* stpd.c (main): Use modname rather than driver_pid in
stpd_filebase.
2006-07-20 Martin Hunt <hunt@redhat.com>
* librelay.c (stp_main_loop): If module doesn't start, kill any
target command.
2006-06-23 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (cleanup_and_exit): Close relay files even if
not merging.
2006-06-13 Martin Hunt <hunt@redhat.com>
* librelay.c (start_cmd): Rewrite using sigwait() to eliminate
a race.
2006-05-18 Martin Hunt <hunt@redhat.com>
* librelay.c (stp_main_loop): Set output to always be line
buffered.
2006-04-08 Martin Hunt <hunt@redhat.com>
* librelay.c (stp_main_loop): Write with fwrite() instead
of fputs() so we can write binary data.
2006-04-05 Martin Hunt <hunt@redhat.com>
* librelay.c (merge_output): Remove ANSI codes and write
warning to stderr.
2006-04-05 Martin Hunt <hunt@redhat.com>
* librelay.c (merge_output): Set the output filename if necessary.
(merge_output):
* stpd.c (main): Don't reset output_filename just because
relayfs is possible. Move that code to librelay.c.
2006-04-04 Roland McGrath <roland@redhat.com>
* stpd.c (main): Cast f_type when comparing; type differs by machine.
2006-04-04 Tom Zanussi <zanussi@us.ibm.com>
* stpd.c (main): Check that /mnt/relay is actually relayfs.
2006-03-15 Tom Zanussi <zanussi@us.ibm.com>
* stpd.c (main): Add runtime check for relayfs vs relay-on-proc.
2006-03-06 Martin Hunt <hunt@redhat.com>
* librelay.c (start_cmd): Set proper uid/gid before execing
command.
(system_cmd): New function.
(cleanup_and_exit): Wait for any child processes to complete.
(stp_main_loop): Recognize STP_SYSTEM message.
* stpd.c (main): Add support for "-u username".
2006-02-25 Martin Hunt <hunt@redhat.com>
* librelay.c (init_stp): Better error handling and cleanup.
2006-02-23 Frank Ch. Eigler <fche@elastic.org>
PR 1304
* stpd.c (mdooptions): New array.
(main): Populate it with leftover arguments.
* librelay.c (init_stp): Pass it to execve().
2005-12-08 Frank Ch. Eigler <fche@elastic.org>
PR 1937
* stpd.c (main): Support new "-d" option.
(usage): Document it.
* librelay.c (driver_poll): New function to react to death of
driver process.
(stp_main_loop): Call it if "-d PID" given. Treat SIGHUP like others.
2005-10-19 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c: Move output_file var to stpd.c.
(stp_main_loop): If the output_file option was specified,
and streaming mode is being used, send output to the file
instead of stdout. If !streaming, send output to the file
instead of probe.out.
* stpd.c (usage): Add comment for -o option.
(main): Add -o option.
2005-10-19 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (merge_output): Switch to binary TIMESTAMP.
* stp_dump.c (main): Switch to binary TIMESTAMP.
* stp_merge.c (main): Switch to binary TIMESTAMP.
2005-10-14 Tom Zanussi <zanussi@us.ibm.com>
PR 1476
* librelay.c: Add flag for buffer processing.
(reader_thread): Disable/enable cancel state around buffer
processing, and update flag to show we're busy processing.
(cleanup_and_exit): Wait for any threads busy processing.
(stp_main_loop): Initialize processing mutex.
2005-09-06 Martin Hunt <hunt@redhat.com>
* librelay.c: Remove all USE_PROCFS ifdefs.
(sig_usr): Signal handler for SIGUSR1.
(start_cmd): New function to handle "-c" option, forks()
off a new process then waits for SIGUSR1 to exec it.
(init_stp): Call start_cmd().
(stp_main_loop): Set a signal handler for SIGCHLD.
* stpd.c (main): Add "-t" and "-c" options.
(usage): Update with new options.
2005-08-29 Martin Hunt <hunt@redhat.com>
* stpd.c main): Add enable_relayfs flag.
Turn it off with "-r".
2005-08-24 Martin Hunt <hunt@redhat.com>
* librelay.c (sigproc): Removed the "Exiting..."
message for now.
2005-08-24 Martin Hunt <hunt@redhat.com>
* librelay.c (sigproc): Reestablish signal handler so
impatient people don't hit ^C twice and terminate the
program before it saves the data and removes the module.
Also print a message to stderr that it is exiting.
(stp_main_loop): Write OOB data (warnings, errors, etc)
to stderr instead of stdout.
* librelay.h: Write debug info to stderr.
* Makefile: add librelay.h to dependencies.
2005-08-23 Martin Hunt <hunt@redhat.com>
* librelay.c (merge_output): Don't add an extra \n.
2005-08-23 Martin Hunt <hunt@redhat.com>
* librelay.c (read_last_buffers): New function. Directly grab the
last buffers.
(info_pending): Deleted.
(request_last_buffers): Deleted.
2005-08-22 Martin Hunt <hunt@redhat.com>
* Makefile (debug): Add debug target.
* librelay.h (dbug): Define.
* librelay.c: Enable some dbug lines.
2005-08-19 Martin Hunt <hunt@redhat.com>
* librelay.c (reader_thread): Check the return value for write().
2005-08-19 Frank Ch. Eigler <fche@elastic.org>
* librelay.c (modpath): New global. Use it for insmod only.
* stpd.c (main): Set both modpath and modname, to support
modules specified by full path name.
2005-08-19 Martin Hunt <hunt@redhat.com>
* stpd.c (main): Simplify buffer size code.
* librelay.c: Major changes to support procfs instead of netlink.
2005-08-03 Tom Zanussi <trz@us.ibm.com>
* librelay.c: Track subbuf info requests/replies
so we know unequivocally when it's ok to do final
processing.
(reader_thread): Remove buffer-full warning.
2005-08-03 Martin Hunt <hunt@redhat.com>
* librelay.c (init_stp): Change variable name to eliminate shadow warning.
2005-08-03 Martin Hunt <hunt@redhat.com>
* librelay.c (open_control_channel): Set the receive buffer
to 512K, or the max allowed.
* stpd.c: Remove "-n" subbug option and change "-b" option
so you can specify buffering in different ways. Add a verbose option.
Exec the "stp_check" script.
2005-08-01 Frank Ch. Eigler <fche@redhat.com>
* librelay.c: Correct fwrite api usage.
* all: Correct copyright holder name.
2005-08-01 Martin Hunt <hunt@redhat.com>
* librelay.h: Get structs and enums from
../transport/transport_msgs.h to eliminate duplication.
* librelay.c (send_request): Retry if send fails.
(open_relayfs_files): Use fopen() instead of open() for the
percpu tmpfiles.
(request_last_buffers): Just send cpu number for STP_BUF_INFO request.
(reader_thread): Ditto.
(process_subbufs): Use fwrite_unlocked() instead of write().
(sigchld): Removed.
(init_stp): Go back to using system() instead of fork and exec
to load module. When done, send a TRANSPORT_INFO request.
(cleanup_and_exit): Change parameter to simple flag to
indicate if the module needs removing.
(sigproc): Remove complicated logic and just send STP_EXIT.
(stp_main_loop): When receiving STP_TRANSPORT_INFO, set
the local params and reply with a STP_START. When
receiving STP_START, there was an error, so cleanup and exit.
* stpd.c (main): Added new options to set number of
buffers and their size.
2005-07-29 Roland McGrath <roland@redhat.com>
* librelay.c (process_subbufs): Use unsigned for I.
(sigproc): Add __attribute__((unused)) on parameter.
(sigchld): Likewise. Avoid shadowing global variable name.
(stp_main_loop): Add a cast.
2005-07-18 Martin Hunt <hunt@redhat.com>
* stp_merge.c (main): Fix dropped count calculation.
2005-07-14 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c (reader_thread): Add missing pthread_mutex_lock
2005-07-14 Frank Ch. Eigler <fche@redhat.com>
* stpd.c (main): Pass !quiet mode to init_stp().
* librelay.c (init_relayfs): Be quiet if !print_totals.
2005-07-13 Martin Hunt <hunt@redhat.com>
* stpd.c (usage): Fix usage string.
* librelay.c (init_stp): Change last arg to NULL, not 0.
2005-07-08 Martin Hunt <hunt@redhat.com>
* librelay.c (sigchld): Signal handler to detect
completion of module loading.
(init_stp): Use fork/exec instead of system() so
we can get async signal of module load success/failure.
(cleanup_and_exit): New function.
(sigproc): If module is not loaded, don't send message to it.
(stp_main_loop): Call cleanup_and_exit() when STP_EXIT
is received. Don't send a request for the transport
mode. The module will send notification to the daemon
when it is ready.
* stpd.c (main): Don't print message until module
is loaded.
2005-07-01 Martin Hunt <hunt@redhat.com>
* librelay.c: Removed the color coding of cpu output.
2005-06-28 Martin Hunt <hunt@redhat.com>
* librelay.c (merge_output): Use unlocked stdio
to improve speed.
* stp_merge.c: New file.
* Makefile: Add stp_merge.
2005-06-27 Martin Hunt <hunt@redhat.com>
* stpd.c (main): Add new command line arg, "-m"
to disable the per-cpu merging.
* librelay.c (merge_output): Replacement for sort_output().
Efficiently merges per-cpu streams.
2005-06-20 Tom Zanussi <zanussi@us.ibm.com>
* librelay.c: Large refactoring, important changes are
added transport_mode command, for relayfs transport
display results only when probe completes and/or write
output file, merge, sort and delete the per-cpu files
in postprocessing, refactor so that relayfs files aren't
created until transport command received, removed sigalrm,
read the final subbuffers on exit
* stpd.c: Remove all command-line args except for -p
and -q as well as all code related to buffer sizes.
* librelay.h: Add transport mode command and struct.
2005-05-16 Martin Hunt <hunt@redhat.com>
* librelay.c (sigproc): If STP_EXIT send fails, keep retrying
every 10ms.
(init_stp): Don't set n_subbufs and subbuf_size params.
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