On Wed, Jul 24, 2013 at 01:17:29PM +0300, Oleksii Shevchuk wrote: > > 1. qemu-kvm -sdl -nodefaults -name NP1-C1 \ > -uuid b71057e9-5705-420b-a780-52339afa6ed9 \ > -boot c \ > -hda np1UD.disk \ > -hdb fat:exchange \ > -device i82559c,netdev=vin0,romfile="",mac="00:11:22:33:44:54" \ > -netdev tap,id=vin0,ifname=vin0,script=no \ > -device cirrus-vga \ > -serial pty \ > & > > 2. ping -s 65000 > > 3. Program received signal SIGABRT, Aborted.
Here is an annotated backtrace: > #7 tx_command (s=s@entry=0x7f9aac086820) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/hw/net/eepro100.c:804 > #6 pci_dma_read (len=0x53f, buf=0x7f9a97ffe022, addr=0x86fa4000, > dev=0x7f9aac086820) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/include/hw/pci/pci.h:659 len=0x53f is an odd number: 1343 > #5 pci_dma_rw (dir=DMA_DIRECTION_TO_DEVICE, len=0x53f, buf=0x7f9a97ffe022, > addr=0x86fa4000, dev=0x7f9aac086820) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/include/hw/pci/pci.h:652 > #4 dma_memory_rw (dir=DMA_DIRECTION_TO_DEVICE, len=0x53f, > buf=0x7f9a97ffe022, addr=0x86fa4000, as=0x7f9aac086a40) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/include/sysemu/dma.h:112 > #3 0x00007f9aa96d6349 in dma_memory_rw_relaxed (dir=DMA_DIRECTION_TO_DEVICE, > len=0x53f, buf=0x7f9a97ffe022, addr=0x86fa4000, as=0x7f9aac086a40) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/include/sysemu/dma.h:90 > #2 0x00007f9aa97cb9ac in address_space_rw (as=as@entry=0x7f9aac086a40, > addr=0x86fa453c, addr@entry=0x86fa4000, buf=0x7f9a97ffe55e > "\327\060\061\061\272?32\330\061\062\062\276@43\331\062\063\063\302A54\332\063\064\064\306B65\333\064\065\065\312C76\334\065\066\066\316D87\335\066\067\067\322E98\336\067\070\070\326F:9\337\070\071\071\332G;:\340\071::\336H<;\341:;;\342I=<\342;<<\346J>=\343<==\352K?>\344=>>", > '\377' <repeats 92 times>..., buf@entry=0x7f9a97ffe022 '\377' <repeats 200 > times>..., len=0x3, len@entry=0x53f, is_write=is_write@entry=0x0) at > /tmp/portage/app-emulation/qemu-9999/work/qemu-9999/exec.c:2005 There are only a few bytes remaining: len=0x3. The abort(3) comes from address_space_rw(): if (!memory_access_is_direct(mr, is_write)) { /* I/O case */ l = memory_access_size(mr, l, addr1); switch (l) { case 8: ... case 4: ... case 2: ... case 1: ... default: abort(); <-- we abort here } Paolo: Do you know how the memory API is supposed to work here? Stefan