<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [r600g]OpenCL driver causes process to hang in ImageMagick's Gaussian Blur kernel" href="https://bugs.freedesktop.org/show_bug.cgi?id=99488#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [r600g]OpenCL driver causes process to hang in ImageMagick's Gaussian Blur kernel" href="https://bugs.freedesktop.org/show_bug.cgi?id=99488">bug 99488</a> from <a class="email" href="mailto:nixscripter@gmail.com" title="nixscripter@gmail.com">nixscripter@gmail.com</a> <pre>I'm still trying some versions in order to help you guys pin this down (it's not always easy to tell what reinstall is having what effect, since Arch Linux has three packages involved). In the mean time, I did the basics on the process in its hung state. It's currently running three threads, two blocked, one continuing to run: (gdb) info threads Id Target Id Frame * 1 Thread 0x39ac9cdf7c0 (LWP 3806) "display" 0x0000039abefef921 in llvm::MachineInstr::findRegisterDefOperandIdx(unsigned int, bool, bool, llvm::TargetRegisterInfo const*) const () from /usr/lib/libLLVM-5.0svn.so 2 Thread 0x39abd04f700 (LWP 3809) "radeon_cs:0" 0x0000039ac6b0310f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0 3 Thread 0x39abadd4700 (LWP 3814) "display" futex_wait (val=8, addr=0x25349d4) at /build/gcc-multilib/src/gcc/libgomp/config/linux/x86/futex.h:44 (gdb) What is that call to findRegisterDefOperandIdx doing? It's not entirely clear, but it's sucking up a lot of memory. Running strace confirms that: strace: Process 3806 attached with 3 threads strace: [ Process PID=3806 runs in x32 mode. ] [pid 3809] futex(0x2599e64, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...> [pid 3814] futex(0x25349d4, FUTEX_WAIT_PRIVATE, 8, NULL <unfinished ...> [pid 3806] mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x640f4000 strace: [ Process PID=3806 runs in 64 bit mode. ] [pid 3806] mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x39a638f3000 [pid 3806] mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x39a630f2000 [pid 3806] mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x39a628f1000 [...] And down the address space it goes, 0x1000 bytes (4k) a time or two per second. Looking at the function name, I'm thinking about what Jan said on another bug: > the hang is probably a separate bug. ImageMagick test suite results on my Turks GPU are: > # TOTAL: 86 > # PASS: 78 > # SKIP: 0 > # XFAIL: 0 > # FAIL: 3 > # XPASS: 0 > # ERROR: 5 > > the errors and failures are accompanied by: > Assertion `i < getNumRegs() && "Register number out of range!"' failed. Could this be perhaps the same registers that were out of range on a different card? Either way, I will continue to investigate, and hope to narrow down the issue soon.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>