search for: writev

...in] rsync 5052 set_bits: ready 1 26 8512794 [main] rsync 5052 select_stuff::poll: returning 1 26 8512820 [main] rsync 5052 select_stuff::cleanup: calling cleanup routines 27 8512847 [main] rsync 5052 select_stuff::~select_stuff: deleting select records 51 8512898 [main] rsync 5052 writev: writev (4, 0x228064, 1) 32 8512930 [main] rsync 5052 writev: 4 = write (4, 0x228064, 1), errno 0 30 8512960 [main] rsync 5052 cygwin_select: 5, 0x0, 0x2284D4, 0x2284C4, 0x2284BC 53 8513013 [main] rsync 5052 dtable::select_write: fd 4 27 8513040 [main] rsync 5052 dtable::select_ex...

...y if you ignore this whole paragraph of mine. >> >> Any single buffer presents the problem of sizing the buffer >> appropriately, which we can't do in this context :) > > Actually, we *can* do better: > > https://pubs.opengroup.org/onlinepubs/9699919799/functions/writev.html > > What we're doing here is the textbook use case for scatter-gather (well, > in this case, gather). It's strange that it has taken me one night to > realize this (it occurred to me before falling asleep last night), given > that I heavily used scatter-gather in other,...

...rlying EXT3 filesystem. restarted and mounted everything and still got errors. so, in hopes of 'solving' this, i upgraded to version 2.06, but we're still getting the following errors on the server side. x61e0c0: Invalid argument [2009-08-27 10:15:41] D [server-protocol.c:1916:server_writev_cbk] server: 33: WRITEV 1 (319495) ==> -1 (Invalid argument) and now i'm also seeing these [2009-08-27 13:32:47] D [server-protocol.c:3561:server_forget] brick: 22206: FORGET 16385 not found in inode table anyone have any ideas on how this could have happened? i'm just _very_ glad t...

...fers to /var/run/samba/winbindd/pipe >> >> Regards, >> Bruno Andrade. >> >> On 12/29/2014 11:56 AM, Bruno Andrade wrote: >>> Hi, >>> >>> Here is some output of "strace -ff -p" to the process using ~100% CPU >>> >>> writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}], >>> 1) = 3496 >>> epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1, >>> 30000) = 1 >>> readv(91, >>> [{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...

...LE,DC=COM.ldb 16 -> /var/lib/samba/private/sam.ldb.d/metadata.tdb the others refers to /var/run/samba/winbindd/pipe Regards, Bruno Andrade. On 12/29/2014 11:56 AM, Bruno Andrade wrote: > Hi, > > Here is some output of "strace -ff -p" to the process using ~100% CPU > > writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}], > 1) = 3496 > epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1, > 30000) = 1 > readv(91, > [{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2092}], > 1) = 2...

...nce=SEEK_SET, start=37196, len=1}) = 0 fcntl(11, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=37196, len=1}) = 0 fcntl(11, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=6032, len=1}) = 0 fcntl(11, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=6032, len=1}) = 0 writev(44, [{"\5\0\2\3\20\0\0\0P\0\20\0\270])\1\30\0\0\0\0\0\0\0\271\366\345\26sb\276\220"..., 80}], 1) = 80 epoll_wait(9, {{EPOLLIN, {u32=1836735552, u64=140507396856896}}}, 1, 30000) = 1 readv(44, [{"\5\0\0\3\20\0\0\0P\0", 10}], 1) = 10 readv(44, [{"\...

Hi, I'm having problems in a second domain controller machine. Every time a restart samba, few time after a samba process starts using almost 100% cpu. It's a Centos 6.5 x86_64 with the following: sernet-samba-libsmbclient0-4.1.6-7.el6.x86_64 sernet-samba-ad-4.1.6-7.el6.x86_64 sernet-build-key-1.1-4.noarch sernet-samba-libs-4.1.6-7.el6.x86_64 sernet-samba-client-4.1.6-7.el6.x86_64

Hello, we have observed pop3 process which got stuck consuming all available CPU. It seems that it happened because of some kind of abnormal POP3 connection termination. Here is strace info for this process: 13:36:05.866190 writev(1, [{"508qWWH96If+uVXeH2Zxl/hkn+plVwmI"..., 3975}, {"HP1oxt+np0o4Xtz27VQBtxx0zWfGuA3r"..., 193}], 2) = -1 EPIPE (Broken pipe) 13:36:05.866250 --- SIGPIPE (Broken pipe) @ 0 (0) --- 13:36:05.866288 epoll_ctl(6, EPOLL_CTL_DEL, 1, {0, {u32=135259776, u64=135259776}}) = 0 13:36:05.86...

On Tue, Jun 16, 2015 at 09:12:24AM -0700, Jeremy Allison wrote: > Not that I know of. Can you run winbindd under valgrind ? > Should help debug this. this is the only waring regardless read/write that valgrind reports: ==16475== Syscall param writev(vector[...]) points to uninitialised byte(s) ==16475== at 0xBB32337: writev (in /usr/lib64/libc-2.17.so) ==16475== by 0xA4AC8E4: writev_handler (async_sock.c:514) ==16475== by 0xB5EE30A: ??? (in /usr/lib64/libtevent.so.0.9.21) ==16475== by 0xB5EC7D6: ??? (in /usr/lib64/libtevent.so.0.9....

...t; > > > > + fd = open(path, flags, 0644); > > > > > + if (fd < 0) { > > > > > + error_report("cannot open %s", path); > > > > > + return -1; > > > > > + } > > > > > + len = writev(fd, out_sg, out_num); > > > > > + close(fd); > > > > > + > > > > > + return len; > > > > > > > > All this is blocking VM until host io completes. > > > > > > Hmm.. I don't know about the internals of...

...t; > > > > + fd = open(path, flags, 0644); > > > > > + if (fd < 0) { > > > > > + error_report("cannot open %s", path); > > > > > + return -1; > > > > > + } > > > > > + len = writev(fd, out_sg, out_num); > > > > > + close(fd); > > > > > + > > > > > + return len; > > > > > > > > All this is blocking VM until host io completes. > > > > > > Hmm.. I don't know about the internals of...

Hi, Here is some output of "strace -ff -p" to the process using ~100% CPU writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}], 1) = 3496 epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1, 30000) = 1 readv(91, [{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2092}], 1) = 2092 gettimeofday({1419854003,...

...b.d/metadata.tdb > > the others refers to /var/run/samba/winbindd/pipe > > Regards, > Bruno Andrade. > > On 12/29/2014 11:56 AM, Bruno Andrade wrote: >> Hi, >> >> Here is some output of "strace -ff -p" to the process using ~100% CPU >> >> writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}], >> 1) = 3496 >> epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1, >> 30000) = 1 >> readv(91, >> [{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,...

...;>> >>> Regards, >>> Bruno Andrade. >>> >>> On 12/29/2014 11:56 AM, Bruno Andrade wrote: >>>> Hi, >>>> >>>> Here is some output of "strace -ff -p" to the process using ~100% CPU >>>> >>>> writev(75, [{"\250\r\0\0\2\0\0\0S-1-5-21-2097307442-3435"..., 3496}], >>>> 1) = 3496 >>>> epoll_wait(9, {{EPOLLIN, {u32=2539833808, u64=140271876753872}}}, 1, >>>> 30000) = 1 >>>> readv(91, >>>> [{"\34\0\0\0\0\0\0\0rT\0\0\0\0\0\0\0...

...esource busy) ioctl(12, USBDEVFS_GETDRIVER, 0xbecf9024) = 0 ioctl(12, USBDEVFS_CLAIMINTERFACE, 0xbecf910c) = -1 EBUSY (Resource busy) ioctl(12, USBDEVFS_GETDRIVER, 0xbecf9024) = 0 ioctl(12, USBDEVFS_CLAIMINTERFACE, 0xbecf910c) = -1 EBUSY (Resource busy) ioctl(12, USBDEVFS_GETDRIVER, 0xbecf9024) = 0 writev(2, [{"Can't claim USB device [0463:fff"..., 62}, {NULL, 0}], 2Can't claim USB device [0463:ffff]: No such file or directory ) = 62 exit_group(1) = ? +++ exited with 1 +++ Why? My ups is: [qnapups] driver = usbhid-ups port = auto desc = Eaton 5SC 500...

...che\comdlg32.dll, 0x80000000, 0x7, 0x22EED0, 0x3, 0x2000081, 0) 207 13026 [main] rsync 2036 fhandler_base::set_flags: flags 0x110000, suppli ed_bin 0x10000 189 13215 [main] rsync 2036 fhandler_base::set_flags: O_TEXT/O_BINARY set in ...skipping... 096) 193 29378730 [main] rsync 2036 writev: 4096 = write (1, 0x226AC0, 1), errno 0 223 29378953 [main] rsync 2036 cygwin_select: 2, 0x0, 0x226B00, 0x0, 0x226AF0 382 29379335 [main] rsync 2036 dtable::select_write: /dev/pipew fd 1 182 29379517 [main] rsync 2036 cygwin_select: to->tv_sec 60, to->tv_usec 0, ms 60000 238...

Ever since I upgraded all my systems to CentOS 5.1 I have been getting reports from users about "all their windows disappearing". A little digging revealed that they meant all gnome-terminal windows. Since there is only one gnome-terminal process by default for all your open terminal windows and tabs, a crash of that process means losing all your terminal windows. These

...flags |= O_APPEND; > > > + } > > > + > > > + fd = open(path, flags, 0644); > > > + if (fd < 0) { > > > + error_report("cannot open %s", path); > > > + return -1; > > > + } > > > + len = writev(fd, out_sg, out_num); > > > + close(fd); > > > + > > > + return len; > > > > All this is blocking VM until host io completes. > > Hmm.. I don't know about the internals of qemu. So does it make guest > stop? If so, that's what I want...

...flags |= O_APPEND; > > > + } > > > + > > > + fd = open(path, flags, 0644); > > > + if (fd < 0) { > > > + error_report("cannot open %s", path); > > > + return -1; > > > + } > > > + len = writev(fd, out_sg, out_num); > > > + close(fd); > > > + > > > + return len; > > > > All this is blocking VM until host io completes. > > Hmm.. I don't know about the internals of qemu. So does it make guest > stop? If so, that's what I want...

...anyways. I'm >> happy if you ignore this whole paragraph of mine. > > Any single buffer presents the problem of sizing the buffer > appropriately, which we can't do in this context :) Actually, we *can* do better: https://pubs.opengroup.org/onlinepubs/9699919799/functions/writev.html What we're doing here is the textbook use case for scatter-gather (well, in this case, gather). It's strange that it has taken me one night to realize this (it occurred to me before falling asleep last night), given that I heavily used scatter-gather in other, not-so-old, code. (Namel...