On Mon, Oct 06, 2025 at 03:02:57PM +0200, Thierry Herbelot wrote: > The e1000 PMD stopped working under Ubuntu-24.04 (using gcc-13) when > compiled with -O3 (default level for all DPDK code). There is a crash > when starting testpmd: > > > (gdb) bt > > #0 rte_read32_relaxed (addr=0x1100800e00) at > > ../sources/lib/eal/include/generic/rte_io.h:290 > > #1 rte_read32 (addr=0x1100800e00) at > > ../sources/lib/eal/include/generic/rte_io.h:345 > > #2 e1000_read_addr (addr=0x1100800e00) at > > ../sources/drivers/net/intel/e1000/base/e1000_osdep.h:106 > > #3 e1000_id_led_init_generic (hw=0x1586788c0) at > > ../sources/drivers/net/intel/e1000/base/e1000_mac.c:1844 > > #4 0x000062aaf653c85f in e1000_init_hw_82540 (hw=0x1586788c0) > > at ../sources/drivers/net/intel/e1000/base/e1000_82540.c:308 > > #5 0x000062aaf6db8227 in em_hardware_init (hw=hw@entry=0x1586788c0) > > at ../sources/drivers/net/intel/e1000/em_ethdev.c:920 > > #6 0x000062aaf65340ff in em_hw_init (hw=0x1586788c0) at > > ../sources/drivers/net/intel/e1000/em_ethdev.c:445 > > #7 eth_em_dev_init (eth_dev=eth_dev@entry=0x62aaff346000 <rte_eth_devices>) > > at ../sources/drivers/net/intel/e1000/em_ethdev.c:314 > > #8 0x000062aaf6db8b71 in rte_eth_dev_pci_generic_probe > > (private_data_size=11240, > > dev_init=0x62aaf6db8310 <eth_em_dev_init>, pci_dev=0x62ab2853dd90) at > > ../sources/lib/ethdev/ethdev_pci.h:150 > > #9 eth_em_pci_probe (pci_drv=<optimized out>, pci_dev=0x62ab2853dd90) > > at ../sources/drivers/net/intel/e1000/em_ethdev.c:365 > > #10 0x000062aaf646adf5 in rte_pci_probe_one_driver > > (dr=dr@entry=0x62aaf82d8020 <rte_em_pmd>, > > dev=dev@entry=0x62ab2853dd90) at > > ../sources/drivers/bus/pci/pci_common.c:299 > > #11 0x000062aaf6a15f7d in pci_probe_all_drivers (dev=0x62ab2853dd90) at > > ../sources/drivers/bus/pci/pci_common.c:383 > > #12 pci_probe () at ../sources/drivers/bus/pci/pci_common.c:410 > > #13 0x000062aaf7a485f3 in rte_bus_probe () at > > ../sources/lib/eal/common/eal_common_bus.c:84 > > #14 0x000062aaf670585d in rte_eal_init (argc=argc@entry=146, > > argv=argv@entry=0x7fffca468898) > > at ../sources/lib/eal/linux/eal.c:1253 > > The crash is linked to the use of gcc-13: under Ubuntu-24.04 testpmd > compiled with gcc-11 from the same DPDK tree works as expected. > > The perfect solution would be for someone to investigate why the > PMD crashes. However, this depends on Maintainer availability. > Hi,
can you test with [1]. It's still a workaround while we investigate more, but a less severe one! /Bruce [1] https://patches.dpdk.org/project/dpdk/patch/[email protected]/
