search for: shmctl

Hi All, We see our application Hanging at shmctl (SHM_LOCK). Kernel : 2.6.32-358.el6.x86_64 OS : Red Hat Enterprise Linux Server release 6.4 (Santiago) 1. When it hangs, this is what strace gives: [RHEL6.4 at 10.201.0.221 bin]# strace -p 23793 Process 23793 attached - interrupt to quit [ Process PID=23793 runs in 32 bit mode. ]...

...sizeof(buf_t) + sizeof (chunk_t) * (size - 1), - IPC_CREAT|S_IREAD|S_IWRITE); + IPC_CREAT|SHM_R|SHM_W); if (shmid == -1) { @@ -92,7 +91,10 @@ perror ("shmat"); exit (1); } - + + /* Remove segment after last process detaches it or terminates. */ + shmctl(shmid, IPC_RMID, 0); + buffer_init (buf, size); /* Create a pipe for communication between the two processes. Unlike -- Christian "naddy" Weisgerber naddy@mips.inka.de --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:...

...shmget (IPC_PRIVATE, ximage->data_size, > IPC_CREAT|0777); > shminfo1.shmaddr = ximage->data = shmat (shminfo1.shmid, 0, 0); > shminfo1.readOnly = False; > if(!XShmAttach (display, &shminfo1)) { > printf("XShmAttach failed!\n"); > } > shmctl (shminfo1.shmid, IPC_RMID, 0); > XSync(display,False); I use tinyX as the Xserver and the xfbdev as the card for the second screen. After the Initialization, Both Screen as a respond. I mean both of them have been waked up. but when I am trying to write image to the first screen by >...

...shmget (IPC_PRIVATE, ximage->data_size, > IPC_CREAT|0777); > shminfo1.shmaddr = ximage->data = shmat (shminfo1.shmid, 0, 0); > shminfo1.readOnly = False; > if(!XShmAttach (display, &shminfo1)) { > printf("XShmAttach failed!\n"); > } > shmctl (shminfo1.shmid, IPC_RMID, 0); > XSync(display,False); I use tinyX as the Xserver and the xfbdev as the card for the second screen. After the Initialization, Both Screen as a respond. I mean both of them have been waked up. but when I am trying to write image to the first screen by > Xv...

Linux 2.2 (and probably others) have a deficient mmap which has caused a number of problems (e.g. bug #285). A workaround is in development, but it would be helpful to have a configure test to detect the bad mmaps(). Any takers? -d

...map"); + exit(1); + } + close(fd); +#else /* Get the shared memory segment. */ int shmid = shmget (IPC_PRIVATE, sizeof(buf_t) + sizeof (chunk_t) * (size - 1), @@ -94,6 +110,7 @@ /* Remove segment after last process detaches it or terminates. */ shmctl(shmid, IPC_RMID, 0); +#endif /* HAVE_SMMAP */ buffer_init (buf, size); -- Christian "naddy" Weisgerber naddy@mips.inka.de --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from th...

hi, I tried to make huge page request in Fedora x86_64 PV guest using xen 4.1 unstable and it crashed(crash info given below) I had enabled superpages in config file I had also set hugepages parameter at boot time for the PV Dom U By excuting # cat /proc/mem_info | grep Huge gave me that there are 10 free huge pages available , still the domain crashed. [ 86.403654] BUG: unable to handle

On Wed, Jul 13, 2016 at 04:48:51PM +0200, Sedat Dilek via llvm-dev wrote: > [ CCed all people who were involved in this thread ] > > Hi Tom, > > personally, I am interested to test the prebuilt-toolchains for > Ubuntu/xenial alias 16.04 LTS and Debian/Jessie v8.5.0 AMD64. > The available toolchains are incomplete and thus useless. > > Just as a fact: There is still no