On Fri, Aug 19, 2022 at 03:37:00PM +0200, Paul Menzel wrote: > Dear Linux folks, > > > On the Dell XPS 13 9370 with Debian sid/unstable, connecting a Dell DA300 > port replicator Linux 5.18.16 logs a warning: > > ``` > $ dmesg > [ 0.000000] Linux version 5.18.0-4-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) > (gcc-11 (Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) > 2.38.90.20220713) #1 SMP PREEMPT_DYNAMIC Debian 5.18.16-1 (2022-08-10) > [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.18.0-4-amd64 > root=UUID=56f398e0-1e25-4fda-aa9f-611dece4b333 ro quiet > […] > [ 0.000000] DMI: Dell Inc. XPS 13 9370/0RMYH9, BIOS 1.21.0 07/06/2022 > […] > [ 13.900028] ucsi_acpi USBC000:00: UCSI_GET_PDOS returned 0 bytes > ``` What warning? > > ``` > $ lsusb > Bus 002 Device 003: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit > Ethernet Adapter > Bus 002 Device 002: ID 2109:0820 VIA Labs, Inc. VL820 Hub > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 004: ID 8087:0a2b Intel Corp. Bluetooth wireless interface > Bus 001 Device 003: ID 0bda:58f4 Realtek Semiconductor Corp. > Integrated_Webcam_HD > Bus 001 Device 006: ID 27c6:5385 Shenzhen Goodix Technology Co.,Ltd. > Fingerprint Reader > Bus 001 Device 005: ID 06c4:c412 Bizlink International Corp. DELL DA300 > Bus 001 Device 002: ID 2109:2820 VIA Labs, Inc. VL820 Hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > ``` > > How can that warning be addressed? What warning? You have a SGX error in your kernel boot log: > [ 0.235418] sgx: EPC section 0x40200000-0x45f7ffff > [ 0.235853] ------------[ cut here ]------------ > [ 0.235855] WARNING: CPU: 1 PID: 83 at arch/x86/kernel/cpu/sgx/main.c:446 ksgxd+0x1b7/0x1d0 > [ 0.235861] Modules linked in: > [ 0.235862] CPU: 1 PID: 83 Comm: ksgxd Not tainted 5.18.0-4-amd64 #1 Debian 5.18.16-1 > [ 0.235865] Hardware name: Dell Inc. XPS 13 9370/0RMYH9, BIOS 1.21.0 07/06/2022 > [ 0.235866] RIP: 0010:ksgxd+0x1b7/0x1d0 > [ 0.235869] Code: ff e9 f2 fe ff ff 48 89 df e8 55 56 0d 00 84 c0 0f 84 c3 fe ff ff 31 ff e8 c6 56 0d 00 84 c0 0f 85 94 fe ff ff e9 af fe ff ff <0f> 0b e9 7f fe ff ff e8 3d dd 93 00 66 66 2e 0f 1f 84 00 00 00 00 > [ 0.235870] RSP: 0000:ffffaaed0097bed8 EFLAGS: 00010287 > [ 0.235872] RAX: ffffaaed00431890 RBX: ffff9a323ccc8000 RCX: 0000000000000000 > [ 0.235873] RDX: 0000000080000000 RSI: ffffaaed00431850 RDI: 00000000ffffffff > [ 0.235875] RBP: ffff9a31416ca080 R08: ffff9a31416cae40 R09: ffff9a31416cae40 > [ 0.235876] R10: 0000000000000000 R11: 0000000000000001 R12: ffffaaed0006bce0 > [ 0.235877] R13: ffff9a3140e9c480 R14: ffffffff9825ee60 R15: 0000000000000000 > [ 0.235878] FS: 0000000000000000(0000) GS:ffff9a32e6640000(0000) knlGS:0000000000000000 > [ 0.235880] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 0.235881] CR2: 0000000000000000 CR3: 00000001fbe10001 CR4: 00000000003706e0 > [ 0.235882] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 0.235883] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 0.235884] Call Trace: > [ 0.235893] <TASK> > [ 0.235895] ? _raw_spin_lock_irqsave+0x24/0x60 > [ 0.235900] ? _raw_spin_unlock_irqrestore+0x23/0x40 > [ 0.235902] ? __kthread_parkme+0x36/0x90 > [ 0.235905] kthread+0xe5/0x110 > [ 0.235907] ? kthread_complete_and_exit+0x20/0x20 > [ 0.235909] ret_from_fork+0x1f/0x30 > [ 0.235914] </TASK> > [ 0.235915] ---[ end trace 0000000000000000 ]--- Talk to the SGX developers about that mess :) thanks, greg k-h
