Hello Heinrich, On 4/22/25 16:54, Heinrich Schuchardt wrote: > Hello Jerome > > PXE booting from standard boot with NET_LWIP just stalls if the server does > not respond: > > Using ethernet@16030000 device > TFTP from server 192.168.99.1; our IP address is 192.168.99.47 > Filename 'pxelinux.cfg/01-6c-cf-39-00-2d-29'. > Load address: 0x45900000 > Loading: > > If a server cannot be connected, the network loop should be exited.
I agree. I was thinking the lwIP TFTP app would handle this but it is not the case. I have a patch for this, which will abort the transfer when no data is received for more than 10 seconds. > > When pressing CTRL-C multiple times I see crashes with a call chain > > tftp_open -> sys_check_timeouts -> memp_free -> do_memp_free_pool tftp_open() in net/lwip/tftp.c does nothing. Do you mean tftp_loop()? > > I guess in sys_check_timeouts() we must remove timed-out timers from the > chain to avoid freeing them twice. I can't reproduce this crash with qemu_arm64_lwip_defconfig. $ make qemu_arm64_lwip_defconfig [...] $ make -s -j$(nproc) CROSS_COMPILE="ccache aarch64-linux-gnu-" $ qemu-system-aarch64 -M virt -nographic -cpu max -bios u-boot.bin [...] => dhcp; setenv serverip 10.0.2.1; tftp DHCP client bound to address 10.0.2.15 (3 ms) Using virtio-net#32 device TFTP from server 10.0.2.1; our IP address is 10.0.2.15 Filename ''. Load address: 0x40200000 Loading: [Press Ctrl+C] Abort => Which platform/config are you using? Can you create a reproducer with QEMU? Thanks, -- Jerome > > Best regards > > Heinrich > >
