On Tue, Jun 01, 2021 at 06:06:50PM +0200, Corentin Noël wrote: > I've been experiencing crashes with 5.13 that do not occur with 5.12, > here is the crash trace: > > [ 47.713713] skbuff: skb_over_panic: text:ffffffffb73a8354 len:3762 > put:3762 head:ffff9e1e1e48e000 data:ffff9e1e1e48e010 tail:0xec2 > end:0xec0 dev:<NULL> > [ 47.716267] kernel BUG at net/core/skbuff.c:110! > [ 47.717197] invalid opcode: 0000 [#1] SMP PTI > [ 47.718049] CPU: 2 PID: 730 Comm: llvmpipe-0 Not tainted 5.13.0- > rc3linux-v5.13-rc3-for-mesa-ci-87614d7f3282.tar.bz2 #1 > [ 47.719739] Hardware name: ChromiumOS crosvm, BIOS 0 > [ 47.720656] RIP: 0010:skb_panic+0x43/0x45 > [ 47.721426] Code: 4f 70 50 8b 87 bc 00 00 00 50 8b 87 b8 00 00 00 50 > ff b7 c8 00 00 00 4c 8b 8f c0 00 00 00 48 c7 c7 78 ae ef b7 e8 7f 4c fb > ff <0f> 0b 48 8b 14 24 48 c7 c1 a0 22 d1 b7 e8 ab ff ff ff 48 c7 c6 e0 > [ 47.725944] RSP: 0000:ffffacec01347c20 EFLAGS: 00010246 > [ 47.726735] RAX: 000000000000008b RBX: 0000000000000010 RCX: > 00000000ffffdfff > [ 47.727820] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: > 0000000000000000 > [ 47.729096] RBP: ffffeb2700792380 R08: ffffffffb8144b08 R09: > 0000000000009ffb > [ 47.730260] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: > ffff9e1e1e95b300 > [ 47.731411] R13: 0000000000000000 R14: ffff9e1e1e48e000 R15: > 0000000000000eb2 > [ 47.732541] FS: 00007f3a82b53700(0000) GS:ffff9e1f2bd00000(0000) > knlGS:0000000000000000 > [ 47.733858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 47.734813] CR2: 00000000010d24f8 CR3: 0000000012d6e004 CR4: > 0000000000370ee0 > [ 47.735968] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 47.737091] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 47.738318] Call Trace: > [ 47.738812] skb_put.cold+0x10/0x10 > [ 47.739450] page_to_skb+0xe4/0x400 > [ 47.740072] receive_buf+0x86/0x1660 > [ 47.740693] ? inet_gro_receive+0x54/0x2c0 > [ 47.741279] ? dev_gro_receive+0x194/0x6a0 > [ 47.741846] virtnet_poll+0x2b8/0x3c0 > [ 47.742357] __napi_poll+0x25/0x150 > [ 47.742844] net_rx_action+0x22f/0x280 > [ 47.743388] __do_softirq+0xba/0x264 > [ 47.743947] irq_exit_rcu+0x90/0xb0 > [ 47.744435] common_interrupt+0x40/0xa0 > [ 47.744978] ? asm_common_interrupt+0x8/0x40 > [ 47.745582] asm_common_interrupt+0x1e/0x40 > [ 47.746182] RIP: 0033:0x7f3a7a276ed4 > [ 47.746708] Code: a0 03 00 00 c5 fc 29 84 24 40 0f 00 00 c5 bc 54 c8 > c5 7c 28 84 24 80 01 00 00 c5 bc 59 e9 c5 fe 5b ed c5 fd 76 c0 c5 d5 fa > c0 <c5> fd db ec c5 fd 7f 84 24 20 0f 00 00 c5 fc 5b ed c4 e2 55 b8 cb > [ 47.749292] RSP: 002b:00007f3a82b4dba0 EFLAGS: 00000212 > [ 47.750006] RAX: 00007f3a8c210324 RBX: ffffffffffffffff RCX: > ffffffffffffffff > [ 47.750964] RDX: 00007f3a8c210348 RSI: 00007f3a8c21034c RDI: > 00007f3a7c0575a0 > [ 47.752049] RBP: 00007f3a82b52ca0 R08: 00007f3a8c210350 R09: > 00007f3a8c210354 > [ 47.753161] R10: 00007f3a8c210358 R11: 000000000000ffef R12: > 00007f3a8c210340 > [ 47.754260] R13: 00007f3a8c210344 R14: 00007f3a7c057580 R15: > 00007f3a8c21033c > [ 47.755354] Modules linked in: > [ 47.755871] ---[ end trace a8b692ea99c9cd9e ]--- > [ 47.756606] RIP: 0010:skb_panic+0x43/0x45 > [ 47.757297] Code: 4f 70 50 8b 87 bc 00 00 00 50 8b 87 b8 00 00 00 50 > ff b7 c8 00 00 00 4c 8b 8f c0 00 00 00 48 c7 c7 78 ae ef b7 e8 7f 4c fb > ff <0f> 0b 48 8b 14 24 48 c7 c1 a0 22 d1 b7 e8 ab ff ff ff 48 c7 c6 e0 > [ 47.760168] RSP: 0000:ffffacec01347c20 EFLAGS: 00010246 > [ 47.760896] RAX: 000000000000008b RBX: 0000000000000010 RCX: > 00000000ffffdfff > [ 47.761903] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: > 0000000000000000 > [ 47.762945] RBP: ffffeb2700792380 R08: ffffffffb8144b08 R09: > 0000000000009ffb > [ 47.764059] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: > ffff9e1e1e95b300 > [ 47.765169] R13: 0000000000000000 R14: ffff9e1e1e48e000 R15: > 0000000000000eb2 > [ 47.766261] FS: 00007f3a82b53700(0000) GS:ffff9e1f2bd00000(0000) > knlGS:0000000000000000 > [ 47.767512] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 47.768389] CR2: 00000000010d24f8 CR3: 0000000012d6e004 CR4: > 0000000000370ee0 > [ 47.769381] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 47.770362] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 47.771339] Kernel panic - not syncing: Fatal exception in interrupt > [ 47.772814] Kernel Offset: 0x35c00000 from 0xffffffff81000000 > (relocation range: 0xffffffff80000000-0xffffffffbfffffff) > > I've been able to bisect the issue a little bit and the issue > disappeared after reverting the 4 following commits: > * fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 > * af39c8f72301b268ad8b04bae646b6025918b82b > * f5d7872a8b8a3176e65dc6f7f0705ce7e9a699e6 > * f80bd740cb7c954791279590b2e810ba6c214e52 > > Here is my kernel config: > https://gitlab.freedesktop.org/tintou/mesa/-/blob/e5d6c56bfae8522e924217883d2c6a6bfc1b332b/.gitlab-ci/container/x86_64.config Do you have the same problem with 5.13-rc4? thanks, greg k-h
