Hi Yanko, >On Tue, 14 May 2019 10:29:31 +0300 >Yanko Kaneti <yan...@declera.com> wrote: > >> Hello, >> >> I am trying to get some Fedora working on the MACCHIATObin SingleShot >> and I am getting an OOPS on what seems to be the first received packet >> on the gigabit port. >> >> I've tried both 5.0.x stable and 5.1.1 with the same result. > >> mvpp2 f4000000.ethernet eth2: Link is Up - 1Gbps/Full - flow control rx/tx >> IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready >> page:ffff7e0001ff1000 count:0 mapcount:0 mapping:0000000000000000 index:0x0 >> flags: 0x1fffe000000000() >> raw: 001fffe000000000 ffff7e0001ff1008 ffff7e0001ff1008 0000000000000000 >> raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 >> page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0) > >Looks like a page refcnt bug (trying to free a page with already have >zero refcnt).
This looks like another issue that was reported here, where the cause was in the EFI firmware : https://lore.kernel.org/netdev/6355174d-4ab6-595d-17db-311bce607...@arm.com/ Can you give some details on the version of the firmware you have and if you are using EFI or uboot ? Maybe Marcin could confirm this is the same issue as what happened in this thread. Thanks, Maxime >> ------------[ cut here ]------------ >> kernel BUG at include/linux/mm.h:547! >> Internal error: Oops - BUG: 0 [#1] SMP >> Modules linked in: crct10dif_ce ghash_ce spi_orion i2c_mux_pca954x i2c_mux >> sfp mdio_i2c omap_rng mvpp2 armada_thermal phylink marvell sbsa_gwdt mvmdio >> vfat fat mmc_block rtc_armada38x sdhci_xenon_driver phy_generic sdhci_pltfm >> xhci_plat_hcd ahci_platform phy_mvebu_cp110_comphy i2c_mv64xxx sdhci fuse >> Process swapper/0 (pid: 0, stack limit = 0x0000000058631e79) >> CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.1.1-300.fc30.aarch64 #1 >> Hardware name: Marvell mvebu_armada-8k/mvebu_armada-8k, BIOS 2019.04 >> 04/18/2019 >> pstate: 40400005 (nZcv daif +PAN -UAO) >> pc : page_frag_free+0x74/0xa0 >> lr : page_frag_free+0x74/0xa0 >> sp : ffff000010003a60 >> x29: ffff000010003a60 x28: ffff0000117e5480 >> x27: 0000000000000000 x26: 0000000000000000 >> x25: ffff80007fc40462 x24: ffff80007fc40458 >> x23: ffff80007fc40450 x22: ffff0000117dbc00 >> x21: ffff8001356c2a00 x20: ffff80007fc404c0 >> x19: ffff80007fc40400 x18: 0000000000000000 >> x17: 0000000000000000 x16: 0000000000000000 >> x15: 0000000000000010 x14: ffffffffffffffff >> x13: ffff00009000375f x12: ffff000010003767 >> x11: ffff000011679000 x10: ffff000010eb6428 >> x9 : ffff00001185a000 x8 : 00000000000001c7 >> x7 : 0000000000000015 x6 : 0000000000000001 >> x5 : 0000000000000000 x4 : ffff80013f72a190 >> x3 : ffff80013f730488 x2 : ffff80013f72a190 >> x1 : 0000000000000000 x0 : 000000000000003e >> Call trace: >> page_frag_free+0x74/0xa0 >> skb_free_head+0x28/0x48 >> skb_release_data+0x13c/0x178 >> skb_release_all+0x30/0x40 >> consume_skb+0x38/0xc8 >> arp_process+0x2d0/0x6e0 >> arp_rcv+0x100/0x178 >> __netif_receive_skb_one_core+0x50/0x60 >> __netif_receive_skb+0x28/0x70 >> netif_receive_skb_internal+0x44/0xd0 >> napi_gro_receive+0x198/0x1c8 >> mvpp2_rx+0x1f8/0x500 [mvpp2] >> mvpp2_poll+0x150/0x1e8 [mvpp2] >> napi_poll+0xb4/0x250 >> net_rx_action+0xbc/0x1b0 >> __do_softirq+0x138/0x334 >> irq_exit+0xc0/0xe0 >> __handle_domain_irq+0x70/0xc0 >> gic_handle_irq+0x58/0xa8 >> el1_irq+0xf0/0x1c0 >> arch_cpu_idle+0x3c/0x1c8 >> default_idle_call+0x20/0x3c >> cpuidle_idle_call+0x140/0x190 >> do_idle+0xb0/0x108 >> cpu_startup_entry+0x2c/0x30 >> rest_init+0xc0/0xcc >> arch_call_rest_init+0x14/0x1c >> start_kernel+0x4ac/0x4c0 >> Code: aa0203e0 d0006101 91226021 9400cf32 (d4210000) >> ---[ end trace 267606a8b5fb06cb ]--- >> Kernel panic - not syncing: Fatal exception in interrupt >> SMP: stopping secondary CPUs >> Kernel Offset: disabled >> CPU features: 0x002,21006000 >> Memory Limit: none >> ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- > >
