I am seeing the same think when I try to run a sample built under gcc from the TI tools
117 void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int ret) 118 { 119 if (ret > 0) { 120 IOHandlerRecord *pioh, *ioh; 121 122 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) { (gdb) l 123 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, readfds)) { 124 ioh->fd_read(ioh->opaque); 125 } (gdb) print ioh $2 = (IOHandlerRecord *) 0x5 However Peter Maydell sent me a kernel image that runs fine on OS X. However when I try to run it under gdb I get the same problem that you see. Oliver -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/804517 Title: qemu crashes on Darwin in qemu_iohandler_poll Status in QEMU: New Bug description: I have an issue when I try to run qemu-system-arm on Mac OS X. Sometime between 1 and 15 secs after qemu is started it crashes as shown bellow. Same thing on linux host works fine. Is anybody else experiencing this? Any Hints? Thanks, Damjan (gdb) run Starting program: /opt/arm-qemu/bin/qemu-system-arm -M verdex -pflash flash.img -nographic -monitor null -m 289 Reading symbols for shared libraries .++++++++++++++........................................................................................ done pxa2xx_clkpwr_write: CPU frequency change attempt U-Boot 1.2.0 (May 10 2008 - 21:17:19) - PXA270@400 MHz - 1604 *** Welcome to Gumstix *** DRAM: 256 MB Flash: 32 MB Using default environment Hit any key to stop autoboot: 1 Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00007fff5fbfed30 0x00007fff5fbfed30 in ?? () (gdb) (gdb) bt #0 0x00007fff5fbfed30 in ?? () #1 0x00000001000c26f4 in qemu_iohandler_poll () #2 0x00000001001975ae in main_loop_wait () #3 0x00000001001976e2 in main_loop () #4 0x000000010019bfbc in qemu_main () #5 0x00000001000d63a5 in main () (gdb) To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/804517/+subscriptions