XPost: linux.debian.bugs.dist
From: csmate@nop.hu
hi,
on a serial console, i managed to have the full crash log, see below...
i forgot to mention that the reproducer c have some comments showing the
steps...
all the best,
cs
p4emu login:
p4emu login:
p4emu login:
p4emu login:
p4emu login: [ 119.074634] BUG: kernel NULL pointer dereference, address:
0000000000000000
[ 119.076747] #PF: supervisor read access in kernel mode
[ 119.078334] #PF: error_code(0x0000) - not-present page
[ 119.079855] PGD 0 P4D 0
[ 119.080648] Oops: Oops: 0000 [#1] SMP NOPTI
[ 119.081993] CPU: 2 UID: 1 PID: 927 Comm: p4xsk.bin Not tainted
6.16.12+deb14-cloud-amd64 #1 PREEMPT(lazy) Debian 6.16.12-1
[ 119.085247] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.17.0-debian-1.17.0-1 04/01/2014
[ 119.088065] RIP: 0010:xsk_destruct_skb+0xd0/0x180
[ 119.089502] Code: 40 10 48 89 cf 89 28 e8 9e 7e 07 00 48 89 df 48 83 c4
18
5b 5d 41 5c 41 5d 41 5e 41 5f e9 c8 cc da ff 48 8b 7b 30 4c 8d 5b 30 <48> 8b
07 4c 8d 67 f8 4c 8d 70
f8 49 39 fb 74 b7 48 89 5c 24 10 4c
[ 119.094947] RSP: 0018:ffffcd5b4012cd48 EFLAGS: 00010002
[ 119.096499] RAX: ffffcd5b40fcf000 RBX: ffff898e05dfcf00 RCX:
fff898e043cf9e8
[ 119.098612] RDX: ffff898e048ccc80 RSI: 0000000000000246 RDI:
000000000000000
[ 119.100687] RBP: 0000000000000001 R08: 0000000000000000 R09:
fff898e01d21900
[ 119.102794] R10: 0000000000000000 R11: ffff898e05dfcf30 R12:
fff898e05f95000
[ 119.104880] R13: ffff898e043cf900 R14: ffff898e7dd32bd0 R15:
000000000000002
[ 119.107000] FS: 00007f0cd9e0a6c0(0000) GS:ffff898ede530000(0000)
knlGS:0000000000000000
[ 119.109358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 119.111080] CR2: 0000000000000000 CR3: 00000000043ba003 CR4:
000000000372ef0
[ 119.113175] Call Trace:
[ 119.113996]
[ 119.114662] ? napi_complete_done+0x7a/0x1a0
[ 119.115952] ip_rcv_core+0x1bb/0x340
[ 119.117050] ip_rcv+0x30/0x1f0
[ 119.118014] __netif_receive_skb_one_core+0x85/0xa0
[ 119.119468] process_backlog+0x87/0x130
[ 119.120617] __napi_poll+0x28/0x180
[ 119.121685] net_rx_action+0x339/0x420
[ 119.122850] handle_softirqs+0xdc/0x320
[ 119.124003] ? handle_edge_irq+0x90/0x1e0
[ 119.125218] do_softirq.part.0+0x3b/0x60
[ 119.126422]
[ 119.127085]
[ 119.127753] __local_bh_enable_ip+0x60/0x70
[ 119.128998] __dev_direct_xmit+0x14e/0x1f0
[ 119.130128] __xsk_generic_xmit+0x482/0xb70
[ 119.131184] ? __remove_hrtimer+0x41/0xa0
[ 119.132199] ? __xsk_generic_xmit+0x51/0xb70
[ 119.133300] ? _raw_spin_unlock_irqrestore+0xe/0x40
[ 119.134637] xsk_sendmsg+0xda/0x1c0
[ 119.135580] __sys_sendto+0x1ee/0x200
[ 119.136509] __x64_sys_sendto+0x24/0x30
[ 119.137493] do_syscall_64+0x84/0x2f0
[ 119.138452] ? __pfx_pollwake+0x10/0x10
[ 119.139454] ? __rseq_handle_notify_resume+0xad/0x4c0
[ 119.140718] ? restore_fpregs_from_fpstate+0x3c/0x90
[ 119.141999] ? switch_fpu_return+0x5b/0xe0
[ 119.143023] ? do_syscall_64+0x204/0x2f0
[ 119.144007] ? do_syscall_64+0x204/0x2f0
[ 119.144990] ? do_syscall_64+0x204/0x2f0
[ 119.146022] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 119.147278] RIP: 0033:0x7f0cde0a49ee
[ 119.148217] Code: 08 0f 85 f5 4b ff ff 49 89 fb 48 89 f0 48 89 d7 48 89
ce
4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66
2e 0f 1f 84 00 00 00 00
00 0f 1f 80 00 00 00 00 48 83 ec 08
[ 119.152877] RSP: 002b:00007f0cd9e09c98 EFLAGS: 00000246 ORIG_RAX:
000000000000002c
[ 119.154774] RAX: ffffffffffffffda RBX: 00007f0cd9e0a6c0 RCX:
0007f0cde0a49ee
[ 119.156526] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
000000000000029
[ 119.158317] RBP: 0000000000000005 R08: 0000000000000000 R09:
000000000000000
[ 119.160078] R10: 0000000000000040 R11: 0000000000000246 R12:
000000000000405
[ 119.161893] R13: 00007f0ccc055ce0 R14: 0000000000000001 R15:
0007f0cde8db900
[ 119.163646]
[ 119.164243] Modules linked in: veth intel_rapl_msr intel_rapl_common
iosf_mbi binfmt_misc kvm_intel kvm irqbypass ghash_clmulni_intel
sha512_ssse3
sha1_ssse3 aesni_intel rapl
button evdev sg efi_pstore configfs nfnetlink vsock_loopback vmw
vsock_virtio_transport_common vmw_vsock_vmci_transport vsock vmw_vmci
qemu_fw_cfg ip_tables x_tables autofs4 sd_mod
sr_mod cdrom ata_generic ata_piix libata virtio_net scsi_mod net_failover
serio_raw failover scsi_common
[ 119.174216] CR2: 0000000000000000
[ 119.175068] ---[ end trace 0000000000000000 ]---
[ 119.176224] RIP: 0010:xsk_destruct_skb+0xd0/0x180
[ 119.177432] Code: 40 10 48 89 cf 89 28 e8 9e 7e 07 00 48 89 df 48 83 c4
18
5b 5d 41 5c 41 5d 41 5e 41 5f e9 c8 cc da ff 48 8b 7b 30 4c 8d 5b 30 <48> 8b
07 4c 8d 67 f8 4c 8d 70
f8 49 39 fb 74 b7 48 89 5c 24 10 4c
[ 119.182155] RSP: 0018:ffffcd5b4012cd48 EFLAGS: 00010002
[ 119.183462] RAX: ffffcd5b40fcf000 RBX: ffff898e05dfcf00 RCX:
fff898e043cf9e8
[ 119.185237] RDX: ffff898e048ccc80 RSI: 0000000000000246 RDI:
000000000000000
[ 119.187022] RBP: 0000000000000001 R08: 0000000000000000 R09:
fff898e01d21900
[ 119.188872] R10: 0000000000000000 R11: ffff898e05dfcf30 R12:
fff898e05f95000
[ 119.190693] R13: ffff898e043cf900 R14: ffff898e7dd32bd0 R15:
000000000000002
[ 119.192655] FS: 00007f0cd9e0a6c0(0000) GS:ffff898ede530000(0000)
knlGS:0000000000000000
[ 119.194681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 119.196244] CR2: 0000000000000000 CR3: 00000000043ba003 CR4:
000000000372ef0
[ 119.198034] Kernel panic - not syncing: Fatal exception in interrupt
[ 119.199761] Kernel Offset: 0x1c000000 from 0xffffffff81000000 (relocation
range: 0xffffffff80000000-0xffffffffbfffffff)
[ 119.202403] ---[ end Kernel panic - not syncing: Fatal exception in
interrupt ]---
[continued in next message]
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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