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Date: Fri, 08 Dec 2023 16:26:48 +0100 From: Gregory CLEMENT <gregory.clement@...tlin.com> To: Andrew Lunn <andrew@...n.ch>, Lorenzo Bianconi <lorenzo@...nel.org>, Sven Auhagen <sven.auhagen@...eatech.de>, thomas.petazzoni@...tlin.com Cc: netdev <netdev@...r.kernel.org> Subject: Re: mvneta crash in page pool code Hi Andrew, > Hi Folks > > I just booted net-next/main on a Marvell RDK with an mvneta. It throws > an Opps and dies. > > My setup might be a little bit unusual, i have NFS root over one of > the instances of mvneta, and a Marvell switch on the other > instance. So i included a bit more context. > > I don't have time to debug this at the moment. Maybe later i can do a > bisect. is it solved by https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=ca8add922f9c ? The errors messages look similar. Gregory > > Andrew > > [ 3.824226] Sending DHCP requests . > [ 5.765176] mvneta f1070000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx > [ 6.484392] ., OK > [ 6.526471] IP-Config: Got DHCP answer from 10.0.1.1, my address is 10.0.1.11 > [ 6.533686] IP-Config: Complete: > [ 6.537006] device=eth0, hwaddr=00:50:43:39:2e:52, ipaddr=10.0.1.11, mask=255.255.255.0, gw=10.0.1.1 > [ 6.546697] host=10.0.1.11, domain=home.lunn.ch, nis-domain=(none) > [ 6.553363] bootserver=0.0.0.0, rootserver=10.0.1.1, rootpath= > [ 6.553375] nameserver0=192.168.0.1 > [ 6.582776] mvneta f1074000.ethernet eth1: Link is Down > [ 6.592817] 8<--- cut here --- > [ 6.596057] Unable to handle kernel NULL pointer dereference at virtual address 00000000 when write > [ 6.605231] [00000000] *pgd=00000000 > [ 6.608858] Internal error: Oops: 805 [#1] SMP ARM > [ 6.613691] Modules linked in: > [ 6.616777] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-00619-g7e0222686316 #47 > [ 6.624839] Hardware name: Marvell Armada 370/XP (Device Tree) > [ 6.630711] PC is at page_pool_unlist+0x40/0x64 > [ 6.635297] LR is at xas_store+0x328/0x61c > [ 6.639438] pc : [<c0887cb8>] lr : [<c0af6fd8>] psr: 60000153 > [ 6.645746] sp : e0821cf0 ip : 00000009 fp : c10fab10 > [ 6.651006] r10: 00000020 r9 : 00000020 r8 : c0c74584 > [ 6.656264] r7 : 00000000 r6 : c3a57348 r5 : 00000000 r4 : c3a57000 > [ 6.662834] r3 : 00000000 r2 : 00000000 r1 : ffffc005 r0 : c1091bb4 > [ 6.669404] Flags: nZCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment none > [ 6.676677] Control: 10c5387d Table: 00004019 DAC: 00000051 > [ 6.682460] Register r0 information: non-slab/vmalloc memory > [ 6.688167] Register r1 information: non-paged memory > [ 6.693261] Register r2 information: NULL pointer > [ 6.698001] Register r3 information: NULL pointer > [ 6.702741] Register r4 information: slab kmalloc-1k start c3a57000 pointer offset 0 size 1024 > [ 6.711430] Register r5 information: NULL pointer > [ 6.716171] Register r6 information: slab kmalloc-1k start c3a57000 pointer offset 840 size 1024 > [ 6.725030] Register r7 information: NULL pointer > [ 6.729771] Register r8 information: non-slab/vmalloc memory > [ 6.735472] Register r9 information: non-paged memory > [ 6.740562] Register r10 information: non-paged memory > [ 6.745738] Register r11 information: non-slab/vmalloc memory > [ 6.751525] Register r12 information: non-paged memory > [ 6.756700] Process swapper/0 (pid: 1, stack limit = 0x(ptrval)) > [ 6.762751] Stack: (0xe0821cf0 to 0xe0822000) > [ 6.767144] 1ce0: c3a57000 c08869c0 c3a57000 00000001 > [ 6.775380] 1d00: c0dc5d5c 00000001 c2280580 c108132c c18e0000 c0886aa4 00000001 c2280580 > [ 6.783616] 1d20: c108132c c223a840 c223a880 c06c4478 c223a840 00000000 000000c0 00000001 > [ 6.791851] 1d40: c2280580 c06c4588 0000002b c0f6c040 000005b8 c2280000 c2280580 00000000 > [ 6.800086] 1d60: 000005b8 00000001 c228017c c06c4d88 c1003f18 00000000 c2280000 e0821dc4 > [ 6.808321] 1d80: 00000000 00000000 00001103 c0846bbc 01010101 c06c74a4 c2280000 c2280000 > [ 6.816556] 1da0: 00000000 3cc0b587 c2280000 00000000 00001102 c084d598 c10fab10 0040003f > [ 6.824791] 1dc0: 00030000 c2280040 c2280040 3cc0b587 c2280000 c18f6000 00000100 00001103 > [ 6.833026] 1de0: c473e1c0 c34b73c0 c0df3094 c084d6e0 00000000 c473e180 c18f6000 c473e180 > [ 6.841261] 1e00: c18f6000 c0f4fbd8 c2280000 c0f2c39c c18f6060 3cc0b587 00000000 00000000 > [ 6.849496] 1e20: c109bae0 0101000a c10fab1c 00000000 c0df307c c0f2df68 c109bae4 c109baec > [ 6.857730] 1e40: c109bae8 c030caa8 00000001 00000002 00000001 00000005 c10f8fc0 ffff8c4e > [ 6.865965] 1e60: 43004400 10624dd3 51eb851f c2419c08 c0c0f614 000001cf 00000000 00000002 > [ 6.874198] 1e80: 00000000 00000000 00000000 00000002 0101000a 00000000 00000000 00000002 > [ 6.882433] 1ea0: 00000000 00000000 00000000 00000003 00000000 00000000 00000000 00000000 > [ 6.890667] 1ec0: 00000000 00000000 00000000 3cc0b587 00000000 c10c6f40 c0f2cee8 c1944000 > [ 6.898903] 1ee0: c18e0000 00000000 c0f47858 c0e018f8 c0e5c274 c0102098 c1944049 00000000 > [ 6.907138] 1f00: c1944048 c0143400 00000062 c0dad800 000000f4 00000000 00000000 c0f004d0 > [ 6.915373] 1f20: 00000007 00000007 c0f01200 c1944055 00000000 3cc0b587 c0f5ec0c 000000f4 > [ 6.923607] 1f40: 00000008 3cc0b587 c0f5f2fc 00000008 c1944000 c0f47838 000000f4 c0f012c0 > [ 6.931842] 1f60: 00000007 00000007 00000000 c0f004d0 e0821f6c c0f004d0 00000000 c1003ec0 > [ 6.940076] 1f80: c0b084d8 00000000 00000000 00000000 00000000 00000000 00000000 c0b084f0 > [ 6.948311] 1fa0: 00000000 c0b084d8 00000000 c010014c 00000000 00000000 00000000 00000000 > [ 6.956545] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 6.964780] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 > [ 6.973018] page_pool_unlist from page_pool_release+0x168/0x1bc > [ 6.979089] page_pool_release from page_pool_destroy+0x90/0x180 > [ 6.985151] page_pool_destroy from mvneta_rxq_drop_pkts+0xf8/0x1c0 > [ 6.991486] mvneta_rxq_drop_pkts from mvneta_cleanup_rxqs+0x48/0x9c > [ 6.997897] mvneta_cleanup_rxqs from mvneta_stop+0xb8/0xec > [ 7.003523] mvneta_stop from __dev_close_many+0xa0/0x124 > [ 7.008972] __dev_close_many from __dev_change_flags+0xd8/0x208 > [ 7.015031] __dev_change_flags from dev_change_flags+0x18/0x54 > [ 7.021004] dev_change_flags from ic_close_devs+0x68/0xdc > [ 7.026543] ic_close_devs from ip_auto_config+0x1080/0x10a8 > [ 7.032253] ip_auto_config from do_one_initcall+0x48/0x1f4 > [ 7.037881] do_one_initcall from kernel_init_freeable+0x1b8/0x21c > [ 7.044128] kernel_init_freeable from kernel_init+0x18/0x12c > [ 7.049929] kernel_init from ret_from_fork+0x14/0x28 > [ 7.055022] Exception stack(0xe0821fb0 to 0xe0821ff8) > [ 7.060112] 1fa0: 00000000 00000000 00000000 00000000 > [ 7.068347] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 7.076581] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 7.083245] Code: e59423ec e3010bb4 e34c0109 e3530000 (e5823000) > [ 7.089456] ---[ end trace 0000000000000000 ]--- > [ 7.094169] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > [ 7.101894] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- > -- Gregory Clement, Bootlin Embedded Linux and Kernel engineering http://bootlin.com
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