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From: | Stefan Weil |
Subject: | Re: [Qemu-devel] [TestDays] s390x emulation error |
Date: | Sat, 12 Nov 2011 11:40:22 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.23) Gecko/20110921 Thunderbird/3.1.15 |
Am 12.11.2011 11:08, schrieb Andreas Färber:
Am 10.11.2011 12:29, schrieb Andreas Färber: I found that the following main-loop change works around it for s390x and rl78 but breaks x86_64 SeaBIOS boot. Paolo, any ideas? diff --git a/main-loop.c b/main-loop.c index 60e9748..2ab5023 100644 --- a/main-loop.c +++ b/main-loop.c @@ -460,7 +460,7 @@ int main_loop_wait(int nonblocking) } glib_select_poll(&rfds, &wfds, &xfds, (ret < 0)); - qemu_iohandler_poll(&rfds, &wfds, &xfds, ret); + qemu_iohandler_poll(&rfds, &wfds, &xfds, (ret < 0)); #ifdef CONFIG_SLIRP slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0)); #endif A deadlock between iothread and main? Andreas
I just tried s390x on a 386 host (32 bit!) and got a different crash (modulo operation / division with 0.0). Are 32 bit hosts supported? Stefan (gdb) rStarting program: /home/stefan/src/qemu/qemu.org/qemu/bin/debug/386/s390x-softmmu/qemu-system-s390x
[Thread debugging using libthread_db enabled] [New Thread 0xae9d0b70 (LWP 6841)] Program received signal SIGFPE, Arithmetic exception. [Switching to Thread 0xae9d0b70 (LWP 6841)] 0x08199f6b in __umoddi3 () (gdb) i s #0 0x08199f6b in __umoddi3 ()#1 0x08168a48 in helper_dlg (r1=2, v2=0) at /home/stefan/src/qemu/qemu.org/qemu/target-s390x/op_helper.c:369
#2 0x00eb5a88 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) (gdb) up#1 0x08168a48 in helper_dlg (r1=2, v2=0) at /home/stefan/src/qemu/qemu.org/qemu/target-s390x/op_helper.c:369
369 env->regs[r1] = env->regs[r1+1] % divisor; (gdb) l 364 { 365 uint64_t divisor = v2; 366 367 if (!env->regs[r1]) { 368 /* 64 -> 64/64 case */ 369 env->regs[r1] = env->regs[r1+1] % divisor; 370 env->regs[r1+1] = env->regs[r1+1] / divisor; 371 return; 372 } else { 373 (gdb) p divisor $1 = 0 (gdb) p v2 $2 = 0
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