If you've got working code for the signal handlers you can submit those as patches now if you like. (http://wiki.qemu.org/Contribute/SubmitAPatch has info on the formatting hoops.) We have a feature freeze for QEMU 2.7 coming up on the 28th June, so before then would be ideal.
Judging by the assertion, something is going wrong with libc's attempt to set the child tidptr via the ctid argument to clone and the CLONE_CHILD_SETTID flag. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1591611 Title: chroot using qemu-x86_64-static fails on ppc64el Status in QEMU: New Bug description: When attempting to use qemu-x86_64-static from qemu 2.5.0 on a ppc64el host to chroot into an amd64 environment, all commands fail with an assertion error. /usr/bin/qemu-x86_64-static from the host was copied into the chroot /usr/bin, and the host has multiformat support in the kernel. Sample output illustrating the problem, as well as bash builtins working: # chroot /virtualbox/scratchdisks_local_001/amd64_chroot qemu-x86_64-static /bin/bash # ls bash: ../sysdeps/nptl/fork.c:136: __libc_fork: Assertion `({ __typeof (self->tid) __value; if (sizeof (__value) == 1) asm volatile ("movb %%fs:%P2,%b0" : "=q" (__value) : "0" (0), "i" (__builtin_offsetof (struct pthread, tid))); else if (sizeof (__value) == 4) asm volatile ("movl %%fs:%P1,%0" : "=r" (__value) : "i" (__builtin_offsetof (struct pthread, tid))); else { if (sizeof (__value) != 8) abort (); asm volatile ("movq %%fs:%P1,%q0" : "=r" (__value) : "i" (__builtin_offsetof (struct pthread, tid))); } __value; }) != ppid' failed. setup_frame: not implemented setup_frame: not implemented qemu: uncaught target signal 11 (Segmentation fault) - core dumped Segmentation fault setup_frame: not implemented setup_frame: not implemented # echo TEST TEST # cat test bash: ../sysdeps/nptl/fork.c:136: __libc_fork: Assertion `({ __typeof (self->tid) __value; if (sizeof (__value) == 1) asm volatile ("movb %%fs:%P2,%b0" : "=q" (__value) : "0" (0), "i" (__builtin_offsetof (struct pthread, tid))); else if (sizeof (__value) == 4) asm volatile ("movl %%fs:%P1,%0" : "=r" (__value) : "i" (__builtin_offsetof (struct pthread, tid))); else { if (sizeof (__value) != 8) abort (); asm volatile ("movq %%fs:%P1,%q0" : "=r" (__value) : "i" (__builtin_offsetof (struct pthread, tid))); } __value; }) != ppid' failed. qemu: uncaught target signal 11 (Segmentation fault) - core dumped Segmentation fault It is currently unknown if other host architectures (e.g. aarch64) are also affected. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1591611/+subscriptions
