[Cc Roman and Shakeel] On Fri 06-11-20 21:13:00, Andrew Morton wrote: > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Thu, 05 Nov 2020 21:18:05 +0000 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > > https://bugzilla.kernel.org/show_bug.cgi?id=210075 > > > > Bug ID: 210075 > > Summary: [Thu Nov 5 13:14:27 2020] WARNING: CPU: 4 PID: 133 at > > mm/page_counter.c:57 page_counter_uncharge+0x34/0x40 > > Product: Memory Management > > Version: 2.5 > > Kernel Version: 5.9.5 > > Hardware: x86-64 > > OS: Linux > > Tree: Mainline > > Status: NEW > > Severity: normal > > Priority: P1 > > Component: Page Allocator > > Assignee: akpm@xxxxxxxxxxxxxxxxxxxx > > Reporter: vladi@xxxxxxxxxxxx > > Regression: No > > I'm assuming this is a bug in the networking code. I've seen a number > of possibly-related emails fly past - is it familiar to anyone? Looks similar to 8de15e920dc8 ("mm: memcg: link page counters to root if use_hierarchy is false"). The path is different so the underlying reason might be something else. > > [Thu Nov 5 13:14:27 2020] ------------[ cut here ]------------ > > [Thu Nov 5 13:14:27 2020] WARNING: CPU: 4 PID: 133 at mm/page_counter.c:57 > > page_counter_uncharge+0x34/0x40 > > [Thu Nov 5 13:14:27 2020] Modules linked in: tcp_diag udp_diag raw_diag > > inet_diag netlink_diag nfnetlink_queue xt_nat macvlan veth ip6table_filter > > ip6_tables nf_conntrack_netlink nfnetlink bridge stp llc 8021q > > iptable_raw nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_NFQUEUE ipt_REJECT > > nf_reject_ipv4 xt_mark xt_tcpudp xt_conntrack iptable_filter xt_MASQUERADE > > xt_addrtype iptable_nat nf_nat iptable_mangle ip_tables x_ > > tables sch_fq_codel ext4 mbcache jbd2 dm_crypt encrypted_keys wireguard > > curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 > > poly1305_x86_64 ip6_udp_tunnel udp_tunnel libblake2s blake2s_x86 > > _64 libblake2s_generic ipv6 libchacha amdgpu snd_hda_codec_hdmi > > nf_conntrack_sip nf_conntrack nf_defrag_ipv6 mfd_core snd_hda_intel gpu_sched > > nf_defrag_ipv4 snd_intel_dspcfg ttm kvm_amd snd_hda_codec drm_kms_he > > lper efi_pstore tun snd_hda_core syscopyarea kvm sysfillrect sysimgblt snd_pcm > > fb_sys_fops irqbypass snd_timer efivars drm snd ccp k10temp tcp_cubic backlight > > soundcore > > [Thu Nov 5 13:14:27 2020] sha1_generic cp210x input_leds evdev led_class > > usbserial bfq acpi_cpufreq button > > [Thu Nov 5 13:14:27 2020] CPU: 4 PID: 133 Comm: kworker/u16:9 Not tainted > > 5.9.5 #85 > > [Thu Nov 5 13:14:27 2020] Hardware name: System manufacturer System Product > > Name/PRIME X370-PRO, BIOS 5220 09/12/2019 > > [Thu Nov 5 13:14:27 2020] Workqueue: netns cleanup_net > > [Thu Nov 5 13:14:27 2020] RIP: 0010:page_counter_uncharge+0x34/0x40 > > [Thu Nov 5 13:14:27 2020] Code: 85 ff 74 24 4c 89 c8 f0 48 0f c1 07 4c 29 c0 > > 48 89 c1 48 89 c6 e8 7c fe ff ff 48 85 c9 78 0b 48 8b 7f 28 48 85 ff 75 dc f3 > > c3 <0f> 0b eb f1 0f 1f 84 00 00 00 00 00 48 8b 17 48 3 > > 9 d6 72 41 41 54 > > [Thu Nov 5 13:14:27 2020] RSP: 0018:ffffa225007c7d30 EFLAGS: 00010082 > > [Thu Nov 5 13:14:27 2020] RAX: fffffffffffffffe RBX: ffff93a9cd087000 RCX: > > fffffffffffffffe > > [Thu Nov 5 13:14:27 2020] RDX: 0000000000000200 RSI: fffffffffffffffe RDI: > > ffff93a9cd087248 > > [Thu Nov 5 13:14:27 2020] RBP: 0000000000000002 R08: 0000000000000002 R09: > > fffffffffffffffe > > [Thu Nov 5 13:14:27 2020] R10: 0000000000000246 R11: 0000000000000000 R12: > > 0000000000000518 > > [Thu Nov 5 13:14:27 2020] R13: 0000000000000488 R14: ffffffffb96869f5 R15: > > ffff93a9cb992c00 > > [Thu Nov 5 13:14:27 2020] FS: 0000000000000000(0000) > > GS:ffff93a9cef00000(0000) knlGS:0000000000000000 > > [Thu Nov 5 13:14:27 2020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > [Thu Nov 5 13:14:27 2020] CR2: 00007f362472c008 CR3: 00000003f108a000 CR4: > > 00000000003506e0 > > [Thu Nov 5 13:14:27 2020] Call Trace: > > [Thu Nov 5 13:14:27 2020] __memcg_kmem_uncharge+0x4a/0x80 > > [Thu Nov 5 13:14:27 2020] drain_obj_stock+0x72/0x90 > > [Thu Nov 5 13:14:27 2020] refill_obj_stock+0x95/0xb0 > > [Thu Nov 5 13:14:27 2020] kmem_cache_free+0x194/0x390 > > [Thu Nov 5 13:14:27 2020] __sk_destruct+0x125/0x180 > > [Thu Nov 5 13:14:27 2020] inet_release+0x48/0x90 > > [Thu Nov 5 13:14:27 2020] sock_release+0x26/0x80 > > [Thu Nov 5 13:14:27 2020] ops_exit_list+0x2e/0x60 > > [Thu Nov 5 13:14:27 2020] cleanup_net+0x1eb/0x310 > > [Thu Nov 5 13:14:27 2020] process_one_work+0x1b1/0x310 > > [Thu Nov 5 13:14:27 2020] worker_thread+0x4b/0x400 > > [Thu Nov 5 13:14:27 2020] ? process_one_work+0x310/0x310 > > [Thu Nov 5 13:14:27 2020] kthread+0x112/0x130 > > [Thu Nov 5 13:14:27 2020] ? __kthread_bind_mask+0x90/0x90 > > [Thu Nov 5 13:14:27 2020] ret_from_fork+0x22/0x30 > > [Thu Nov 5 13:14:27 2020] ---[ end trace a17bbc8650d8c295 ]--- > > > > -- > > You are receiving this mail because: > > You are the assignee for the bug. -- Michal Hocko SUSE Labs
