search for: o_ndelay

...cas/hs-handler/logfiles", 0xFFBEEF70) = 0 stat64("run/data/fracas/hs-handler/logfiles/neuer ordner", 0xFFBEEF70) Err#2 ENOENT stat64("run/data/fracas/hs-handler/logfiles/neuer ordner", 0xFFBEEF70) Err#2 ENOENT open64("run/data/fracas/hs-handler/logfiles", O_RDONLY|O_NDELAY) = 25 fcntl(25, F_SETFD, 0x00000001) = 0 fstat64(25, 0xFFBEE118) = 0 getdents64(25, 0x0029A5D0, 1048) = 896 getdents64(25, 0x0029A5D0, 1048) = 88 getdents64(25, 0x0029A5D0, 1048) = 0 close(25) = 0 stat64("run/data/fracas/hs-handler/logfiles/neuer ordner", 0xFFBEF080) Err#2 ENO...

I have a strange problem with sshd (from openssh-2.9p2) on Solaris 7. My shell is bash. When I open an ssh session , and type a Control-C to bash's prompt, the shell hangs. (But, if I for instance run "sleep 10" (during which time the pty is in cooked mode) and press Control-C, the sleep command is interrupted quite normally, and the bash prompt returns.) Adding some debugging

Thanks for the interesting puzzle to crunch! Looking at these few bread-crumbs, I wager an educated guess that this loops in `sendcmd()` (where CLI child processes talk to a daemonized copy which tracks the timers for events), around here: https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L583-L626 for the daemon and here for the child:

Thanks for the interesting puzzle to crunch! Looking at these few bread-crumbs, I wager an educated guess that this loops in `sendcmd()` (where CLI child processes talk to a daemonized copy which tracks the timers for events), around here: https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L583-L626 for the daemon and here for the child:

...read()` loop continuation effectively if `pconf_char()` returned 0. Just grasping at straws here (since it is a change a couple of months before the release was cut), because if ALL of those 128 reads (skipped above) did return 0, we should not have got to this line. The comment added here "*O_NDELAY with zero bytes means nothing to read but since read() follows a successful select() with ready file descriptor, ret shouldn't be 0*" - that might be misleading too, since per internet: > The result of O_nonblock and O_ndelay is to make I/O into non-blocking mode (non-blocking), return...

...read()` loop continuation effectively if `pconf_char()` returned 0. Just grasping at straws here (since it is a change a couple of months before the release was cut), because if ALL of those 128 reads (skipped above) did return 0, we should not have got to this line. The comment added here "*O_NDELAY with zero bytes means nothing to read but since read() follows a successful select() with ready file descriptor, ret shouldn't be 0*" - that might be misleading too, since per internet: > The result of O_nonblock and O_ndelay is to make I/O into non-blocking mode (non-blocking), return...

...e-T200 top reports it using around 3% cpu, which corresponds to one hardware thread on the cpu i guess. These are the last few lines from truss -fo /tmp/dtrace.out dtrace -l 1323: ioctl(3, DTRACEIOC_CONF, 0x10010D340) = 0 1323: openat(-3041965, "/system/object", O_RDONLY|O_NDELAY|O_LARGEFILE) = 4 1323: fcntl(4, F_SETFD, 0x00000001) = 0 1323: fstat(4, 0xFFFFFFFF7FFFF640) = 0 1323: getdents(4, 0xFFFFFFFF7F404000, 8192) = 4016 And that''s where it hangs... no output from dtrace to stdout, nor to the truss output fil...

...rypt open64("/dev/urandom", O_RDONLY) = 3 read(3, "F80E82 c", 4) = 4 fcntl(3, F_GETFD, 0x00000000) = 0 fcntl(3, F_SETFD, 0x00000001) = 0 open64("/usr/local/lib/dovecot/auth/password", O_RDONLY|O_NDELAY) Err#2 ENOENT read(3, "8382", 2) = 2 Incurred fault #6, FLTBOUNDS %pc = 0xFF0E3304 siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 Received signal #11, SIGSEGV [default] siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 *** process killed...

...First unseen. * OK [UIDVALIDITY 1199514743] UIDs valid * OK [UIDNEXT 2] Predicted next UID 2 OK [READ-WRITE] Select completed. 3 UID fetch 1 ( BODY.PEEK[HEADER.FIELDS (From)]) Connection to mail closed by foreign host. openat(-3041965, "/var/mail/apps/domain/admin/Maildir/cur", O_RDONLY|O_NDELAY|O_LARGEFILE) = 9 fcntl(9, F_SETFD, 0x00000001) = 0 fstat64(9, 0x080474C0) = 0 stat64("/var/mail/apps/domain/admin/Maildir/cur", 0x080475C0) = 0 time() = 1199564680 getdents64(9, 0xFEFA4000, 8192)...

...define O_NOCTTY 0x0800 #define FASYNC 0x1000 #define O_LARGEFILE 0x2000 +#define O_SYNC 0x4010 #define O_DIRECT 0x8000 #define O_DIRECTORY 0x10000 #define O_NOFOLLOW 0x20000 #define O_NOATIME 0x40000 #define O_CLOEXEC 0x80000 +#define O_PATH 0x200000 +#define O_TMPFILE 0x410000 #define O_NDELAY O_NONBLOCK @@ -53,6 +55,24 @@ #define F_SETLK64 34 #define F_SETLKW64 35 +#define F_SETOWN_EX 15 +#define F_GETOWN_EX 16 + +#define F_GETOWNER_UIDS 17 + +#define F_OFD_GETLK 36 +#define F_OFD_SETLK 37 +#define F_OFD_SETLKW 38 + +#define F_OWNER_TID 0 +#define F_OWNER_PID 1 +#define F_OWNER_PG...

....h> #include<stdio.h> #include<signal.h> #include "lpswitch.h" /* Main program. */ int main(int argc, char **argv) { struct termios port_config; int fd; int set_bits = 2; /* Open monitor device. */ if ((fd = open(SWDEV, O_RDWR | O_NDELAY))< 0) { fprintf(stderr, "lpswtich: %s: %d\n", SWDEV, strerror(errno)); exit(1);} cfmakeraw(&port_config ); port_config.c_iflag=port_config.c_iflag|IXON; port_config.c_oflag=port_config.c_oflag|CLOCAL|~CRTSCTS; tcsetattr( fd, TCSANOW,&port_con...

...; #include <stdio.h> #include <signal.h> #include "lpswitch.h" /* Main program. */ int main(int argc, char **argv) { struct termios port_config; int fd; int set_bits = 6; /* Open monitor device. */ if ((fd = open(SWDEV, O_RDWR | O_NDELAY)) < 0) { fprintf(stderr, "lpswtich: %s: %s\n", SWDEV, sys_errlist[errno]); exit(1);} cfmakeraw( &port_config ); port_config.c_iflag=port_config.c_iflag|IXON; port_config.c_oflag=port_config.c_oflag|CLOCAL|~CRTSCTS; tcsetattr( fd, TCSANOW, &po...

Jim Klimov via Nut-upsuser writes: > So... determining that FD is to be reaped proved hard. Internet lore suggests > fcntl() and poll() on the FD, but it just seems valid to them. The errno is > also usually not raised (once I saw a "111: Connection refused" though). > So the best dumb idea so far is to bail out if we spent the whole loop (128 > attempts) and only

...rs/AA/AA/test at pacific.net.sg/Maildir/.qmail/maildirfolder", 0xFFBFF148) = 0 lstat64("/var/qmail/maildirs/AA/AA/test at pacific.net.sg/Maildir/.qmail/cur", 0xFFBFF148) = 0 openat(-3041965, "/var/qmail/maildirs/AA/AA/test at pacific.net.sg/Maildir/.qmail/cur", O_RDONLY|O_NDELAY|O_LARGEFILE) = 8 fcntl(8, F_SETFD, 0x00000001) = 0 fstat64(8, 0xFFBFEEE8) = 0 getdents64(8, 0xFEE72000, 8192) = 1088 lstat64("/var/qmail/maildirs/AA/AA/test at pacific.net.sg/Maildir/.qmail/cur/1169092926.M656431P6118V04010002I000023E9...

...ct sockaddr *) &server, sizeof(server)) == -1) > + fatal_with_errno("Can't bind TCP port %s", serv->port); > + > + if ((res = fcntl(serv->sock_fd, F_GETFL, 0)) == -1) > fatal_with_errno("fcntl(get)"); > > - if (fcntl(listenfd, F_SETFL, res | O_NDELAY) == -1) > + if (fcntl(serv->sock_fd, F_SETFL, res | O_NDELAY) == -1) > fatal_with_errno("fcntl(set)"); > > - if (listen(listenfd, 16)) > + if (listen(serv->sock_fd, 16)) > fatal_with_errno("listen"); > > return; > +} > #else >...

Hi i''m trying to write my first dtrace script apparently i bit off a bit more than i can chew, i want to track io over sockets, i found your socketsize.d that gave me how to track writes, but i''m at a loss how to track reads, frankly i don''t see how your write tracker works because it uses a probe in a function that only takes two arguments but you grab size of write

Hello all, First off, i''m talking about a SXDE build 89. Sorry if that was discussed here before, but i did not find anything related on the archives, and i think is a "weird" issue... If i try to remove a specific file, i got: # rm file1 rm: file1: No such file or directory # rm -rf dir2 rm: Unable to remove directory dir2: Directory not empty Take a look: ------- cut

...csi/ch.c +++ b/drivers/scsi/ch.c @@ -872,6 +872,10 @@ static long ch_ioctl_compat(struct file * file, unsigned int cmd, unsigned long arg) { scsi_changer *ch = file->private_data; + int retval = scsi_ioctl_block_when_processing_errors(ch->device, cmd, + file->f_flags & O_NDELAY); + if (retval) + return retval; switch (cmd) { case CHIOGPARAMS: @@ -883,7 +887,7 @@ static long ch_ioctl_compat(struct file * file, case CHIOINITELEM: case CHIOSVOLTAG: /* compatible */ - return ch_ioctl(file, cmd, arg); + return ch_ioctl(file, cmd, (unsigned long)compat_ptr(arg))...

Hi Jens, James and Martin, This series concludes the work I did for linux-5.5 on the compat_ioctl() cleanup, killing off fs/compat_ioctl.c and block/compat_ioctl.c by moving everything into drivers. Overall this would be a reduction both in complexity and line count, but as I'm also adding documentation the overall number of lines increases in the end. My plan was originally to keep the

...csi/ch.c +++ b/drivers/scsi/ch.c @@ -872,6 +872,10 @@ static long ch_ioctl_compat(struct file * file, unsigned int cmd, unsigned long arg) { scsi_changer *ch = file->private_data; + int retval = scsi_ioctl_block_when_processing_errors(ch->device, cmd, + file->f_flags & O_NDELAY); + if (retval) + return retval; switch (cmd) { case CHIOGPARAMS: @@ -883,7 +887,7 @@ static long ch_ioctl_compat(struct file * file, case CHIOINITELEM: case CHIOSVOLTAG: /* compatible */ - return ch_ioctl(file, cmd, arg); + return ch_ioctl(file, cmd, (unsigned long)compat_ptr(arg))...