Messages in this thread | | | From | Paul Menzel <> | Subject | kernel BUG at arch/x86/kernel/apic/apic.c with Dell server with x2APIC enabled and unset X2APIC | Date | Fri, 21 Feb 2020 15:37:23 +0100 |
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Dear Linux folks,
On the Dell PowerEdge T640/04WYPY, BIOS 2.4.8 11/27/2019, Linux 5.4.14 (and 4.19.57) with unset `IRQ_REMAP` and `X86_X2APIC` crashes on start-up, when x2APIC is enabled in the firmware.
[ 3.862327] ACPI: Core revision 20190816 [ 3.869551] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns [ 3.878797] APIC: Switch to symmetric I/O mode setup [ 3.883893] Switched APIC routing to physical flat. [ 3.888904] ------------[ cut here ]------------ [ 3.893641] kernel BUG at arch/x86/kernel/apic/apic.c:1616! [ 3.899347] invalid opcode: 0000 [#1] SMP NOPTI [ 3.903990] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.14.mx64.317 #1 [ 3.910803] Hardware name: Dell Inc. PowerEdge T640/04WYPY, BIOS 2.4.8 11/27/2019 [ 3.918448] RIP: 0010:setup_local_APIC+0x32e/0x390 [ 3.923356] Code: 68 70 2e 01 be 00 07 01 00 bf 50 03 00 00 48 8b 40 10 e8 15 9e db 00 eb a9 be 00 04 01 00 bf 60 03 00 00 e8 04 9e db 00 eb bb <0f> 0b e8 5b 3a 00 00 [ 3.942300] RSP: 0000:ffffffff82403e88 EFLAGS: 00010246 [ 3.947641] RAX: 0000000000000000 RBX: 00000000000000ff RCX: ffffffff82454128 [ 3.955787] RDX: 0000000000000000 RSI: 00000000fffffeff RDI: 0000000000000020 [ 3.963031] RBP: ffffffffffffffff R08: 00000000000001c4 R09: 0734073407370739 [ 3.970277] R10: ffffffff82573000 R11: 0720072007730765 R12: ffffffff82a4a920 [ 3.977522] R13: 0000000000000000 R14: ffff88c07fff0e80 R15: 0000000000000000 [ 3.984766] FS: 0000000000000000(0000) GS:ffff889fffc00000(0000) knlGS:0000000000000000 [ 3.993014] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.998876] CR2: ffff88c07ffff000 CR3: 000000000240a001 CR4: 00000000000606b0 [ 4.006121] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4.013365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4.020611] Call Trace: [ 4.023184] apic_intr_mode_init+0x1d2/0x1ec [ 4.027573] x86_late_time_init+0x17/0x1c [ 4.031706] start_kernel+0x41f/0x4d3 [ 4.035491] secondary_startup_64+0xa4/0xb0 [ 4.039797] Modules linked in: [ 4.042997] ---[ end trace c3629ce2e87a638c ]--- [ 4.047746] RIP: 0010:setup_local_APIC+0x32e/0x390 [ 4.052663] Code: 68 70 2e 01 be 00 07 01 00 bf 50 03 00 00 48 8b 40 10 e8 15 9e db 00 eb a9 be 00 04 01 00 bf 60 03 00 00 e8 04 9e db 00 eb bb <0f> 0b e8 5b 3a 00 00 [ 4.071617] RSP: 0000:ffffffff82403e88 EFLAGS: 00010246 [ 4.076966] RAX: 0000000000000000 RBX: 00000000000000ff RCX: ffffffff82454128 [ 4.084219] RDX: 0000000000000000 RSI: 00000000fffffeff RDI: 0000000000000020 [ 4.091475] RBP: ffffffffffffffff R08: 00000000000001c4 R09: 0734073407370739 [ 4.098738] R10: ffffffff82573000 R11: 0720072007730765 R12: ffffffff82a4a920 [ 4.106000] R13: 0000000000000000 R14: ffff88c07fff0e80 R15: 0000000000000000 [ 4.113252] FS: 0000000000000000(0000) GS:ffff889fffc00000(0000) knlGS:0000000000000000 [ 4.121509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.127380] CR2: ffff88c07ffff000 CR3: 000000000240a001 CR4: 00000000000606b0 [ 4.134632] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4.141887] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4.149142] Kernel panic - not syncing: Attempted to kill the idle task! [ 4.155968] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
This is the code below.
/* * Double-check whether this APIC is really registered. * This is meaningless in clustered apic mode, so we skip it. */ BUG_ON(!apic->apic_id_registered());
Should this be made a similar error as in `validate_x2apic`?
panic("BIOS has enabled x2apic but kernel doesn't support x2apic, please disable x2apic in BIOS.\n");
`noapic` and `acpi=off` separately did not work, but `noapic acpi=off` hit the other panic.
Kind regards,
Paul
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