Kernel: Spurious networking kernel panic on boot
Found this with Clang x86_64 (no KVM) today but can't reproduce.
2.236 SystemServer(6:6): Creating /tmp/coredump directory
2.255 SystemServer(6:6): Read system_mode: graphical
2.260 SystemServer(6:6): System in graphical mode
2.415 SystemServer(6:6): Activating 21 services...
2.475 [#0 NetworkTask(7:7)]: BUG! Unexpected NP fault at V0x00000020091b8f50
2.475 [#0 NetworkTask(7:7)]: - Physical page slot pointer: 0x000000200021c730
2.475 [#0 NetworkTask(7:7)]: - Physical page: P00000000038e6000
2.475 [#0 NetworkTask(7:7)]: - Lazy committed: false
2.475 [#0 NetworkTask(7:7)]: - Shared zero: false
2.475 [#0 NetworkTask(7:7)]: Unrecoverable page fault, write to address V0x00000020091b8f50
2.475 [NetworkTask(7:7)]: CRASH: CPU #0 Page Fault in ring 0
2.475 [#0 NetworkTask(7:7)]: Exception code: 0002 (isr: 0000)
2.475 [#0 NetworkTask(7:7)]: pc=0x0008:0x000000200d759338 rflags=0x0000000000000006
2.475 [#0 NetworkTask(7:7)]: stack=0x0000002008ce8580
2.475 [#0 NetworkTask(7:7)]: rax=0x000000200d76ba00 rbx=0x000000200e304320 rcx=0x810eb3010fdbd87c rdx=0x000000200e37bbb0
2.475 [#0 NetworkTask(7:7)]: rbp=0x0000002008ce8668 rsp=0x0000002008ce8580 rsi=0x00000020091b8f50 rdi=0x0000000000000000
2.475 [#0 NetworkTask(7:7)]: r8=0x000000200d7368f0 r9=0x000000200e005830 r10=0x000000200e0057f0 r11=0x000000200e007e50
2.475 [#0 NetworkTask(7:7)]: r12=0x0000000000000023 r13=0x00000020091b8f60 r14=0x00000020091b8ea0 r15=0x00000020091b8f58
2.475 [#0 NetworkTask(7:7)]: cr0=0x0000000080010013 cr2=0x00000020091b8f50 cr3=0x0000000004071000 cr4=0x00000000003406e4
2.475 [#0 NetworkTask(7:7)]: Process regions:
2.475 [#0 NetworkTask(7:7)]: BEGIN END SIZE ACCESS NAME
2.475 [#0 NetworkTask(7:7)]: Kernel regions:
2.475 [#0 NetworkTask(7:7)]: BEGIN END SIZE ACCESS NAME
2.475 [#0 NetworkTask(7:7)]: 0x0000002000200000 -- 0x0000002000a00fff 0x0000000000801000
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a01000 -- 0x0000002000a20fff 0x0000000000020000 RW VGA Display
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a22000 -- 0x0000002000a22fff 0x0000000000001000 RW
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a23000 -- 0x0000002000a23fff 0x0000000000001000 RW
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a24000 -- 0x0000002000a24fff 0x0000000000001000 RW Time page
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a26000 -- 0x0000002000a26fff 0x0000000000001000 RW HPET MMIO
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a27000 -- 0x0000002000a27fff 0x0000000000001000 R C Signal trampolines
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a28000 -- 0x0000002000a37fff 0x0000000000010000 RW T Kernel stack (thread 0)
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a38000 -- 0x0000002000a38fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a39000 -- 0x0000002000a39fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3a000 -- 0x0000002000a3afff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3b000 -- 0x0000002000a3bfff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3c000 -- 0x0000002000a3cfff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3d000 -- 0x0000002000a3dfff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3e000 -- 0x0000002000a3efff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a3f000 -- 0x0000002000a3ffff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a40000 -- 0x0000002000a40fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a41000 -- 0x0000002000a41fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a48000 -- 0x0000002000a57fff 0x0000000000010000 RW T Kernel stack (thread 2)
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a58000 -- 0x0000002000a58fff 0x0000000000001000 RW
2.475 [#0 NetworkTask(7:7)]: 0x0000002000a59000 -- 0x0000002000ae8fff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002000ae9000 -- 0x0000002000af8fff 0x0000000000010000 RW T Kernel stack (thread 3)
2.475 [#0 NetworkTask(7:7)]: 0x0000002000af9000 -- 0x0000002000af9fff 0x0000000000001000 W UHCI Framelist
2.475 [#0 NetworkTask(7:7)]: 0x0000002000afa000 -- 0x0000002000afafff 0x0000000000001000 RW UHCI Descriptor Pool
2.475 [#0 NetworkTask(7:7)]: 0x0000002000afb000 -- 0x0000002000afbfff 0x0000000000001000 RW UHCI Descriptor Pool
2.475 [#0 NetworkTask(7:7)]: 0x0000002000afc000 -- 0x0000002000afcfff 0x0000000000001000 RW UHCI Isochronous Descriptor Pool
2.475 [#0 NetworkTask(7:7)]: 0x0000002000afd000 -- 0x0000002000afdfff 0x0000000000001000 RW E1000 RX Descriptors
2.475 [#0 NetworkTask(7:7)]: 0x0000002000afe000 -- 0x0000002000afefff 0x0000000000001000 RW E1000 TX Descriptors
2.475 [#0 NetworkTask(7:7)]: 0x0000002000b00000 -- 0x0000002004afffff 0x0000000004000000
2.475 [#0 NetworkTask(7:7)]: 0x0000002004b00000 -- 0x0000002004b8ffff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002004b90000 -- 0x0000002004c1ffff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002004c20000 -- 0x0000002004caffff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002004cb0000 -- 0x0000002004d3ffff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002004d40000 -- 0x0000002004dcffff 0x0000000000090000 RW Virtual Console Cells
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dd0000 -- 0x0000002004ddffff 0x0000000000010000 RW T Kernel stack (thread 4)
2.475 [#0 NetworkTask(7:7)]: 0x0000002004de0000 -- 0x0000002004deffff 0x0000000000010000 RW T Kernel stack (thread 5)
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df0000 -- 0x0000002004df0fff 0x0000000000001000 RW E1000 RX Descriptors
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df1000 -- 0x0000002004df1fff 0x0000000000001000 RW E1000 TX Descriptors
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df2000 -- 0x0000002004df2fff 0x0000000000001000 RW IDE PRDT
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df3000 -- 0x0000002004df3fff 0x0000000000001000 RW IDE DMA region
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df4000 -- 0x0000002004df4fff 0x0000000000001000 RW IDE PRDT
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df5000 -- 0x0000002004df5fff 0x0000000000001000 RW IDE DMA region
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df6000 -- 0x0000002004df7fff 0x0000000000002000 RW AHCI HBA
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df8000 -- 0x0000002004df8fff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004df9000 -- 0x0000002004df9fff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dfa000 -- 0x0000002004dfafff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dfb000 -- 0x0000002004dfbfff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dfc000 -- 0x0000002004dfcfff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dfd000 -- 0x0000002004dfdfff 0x0000000000001000 RW AHCI Port Command List
2.475 [#0 NetworkTask(7:7)]: 0x0000002004dfe000 -- 0x0000002004dfefff 0x0000000000001000 RW Ext2FS: Block group descriptors
2.475 [#0 NetworkTask(7:7)]: 0x0000002004e00000 -- 0x00000020050fffff 0x0000000000300000 RW Framebuffer Console
2.475 [#0 NetworkTask(7:7)]: 0x0000002005100000 -- 0x00000020056fffff 0x0000000000600000 RW Framebuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002005700000 -- 0x0000002005cfffff 0x0000000000600000 RW Framebuffer Swap (Blank)
2.475 [#0 NetworkTask(7:7)]: 0x0000002005d00000 -- 0x0000002005d1ffff 0x0000000000020000 RW E1000 MMIO
2.475 [#0 NetworkTask(7:7)]: 0x0000002005d20000 -- 0x0000002005f1ffff 0x0000000000200000 RW E1000 RX buffers
2.475 [#0 NetworkTask(7:7)]: 0x0000002005f20000 -- 0x000000200611ffff 0x0000000000200000 RW E1000 TX buffers
2.475 [#0 NetworkTask(7:7)]: 0x0000002006120000 -- 0x000000200613ffff 0x0000000000020000 RW E1000 MMIO
2.475 [#0 NetworkTask(7:7)]: 0x0000002006140000 -- 0x000000200633ffff 0x0000000000200000 RW E1000 RX buffers
2.475 [#0 NetworkTask(7:7)]: 0x0000002006340000 -- 0x000000200653ffff 0x0000000000200000 RW E1000 TX buffers
2.475 [#0 NetworkTask(7:7)]: 0x0000002006540000 -- 0x0000002008c4ffff 0x0000000002710000 RW KBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008c50000 -- 0x0000002008cc5fff 0x0000000000076000 RW KBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cc6000 -- 0x0000002008cc6fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cc7000 -- 0x0000002008cd6fff 0x0000000000010000 RW T Kernel stack (thread 6)
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cd7000 -- 0x0000002008cd7fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cd8000 -- 0x0000002008cd8fff 0x0000000000001000 RW Ext2FS: Cached bitmap block
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cd9000 -- 0x0000002008ce8fff 0x0000000000010000 RW T Kernel stack (thread 7)
2.475 [#0 NetworkTask(7:7)]: 0x0000002008ce9000 -- 0x0000002008cf8fff 0x0000000000010000 RW Kernel Packet Buffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008cf9000 -- 0x0000002008d18fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008d19000 -- 0x0000002008d38fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008d39000 -- 0x0000002008d58fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008d59000 -- 0x0000002008d78fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008d79000 -- 0x0000002008d98fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008d99000 -- 0x0000002008db8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008db9000 -- 0x0000002008dd8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008dd9000 -- 0x0000002008df8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008df9000 -- 0x0000002008e18fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008e19000 -- 0x0000002008e38fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008e39000 -- 0x0000002008e58fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008e59000 -- 0x0000002008e78fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008e79000 -- 0x0000002008e98fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008e99000 -- 0x0000002008eb8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008eb9000 -- 0x0000002008ed8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008ed9000 -- 0x0000002008ef8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008ef9000 -- 0x0000002008f18fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008f19000 -- 0x0000002008f38fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008f39000 -- 0x0000002008f58fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008f59000 -- 0x0000002008f78fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008f79000 -- 0x0000002008f98fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008f99000 -- 0x0000002008fb8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008fb9000 -- 0x0000002008fd8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008fd9000 -- 0x0000002008ff8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002008ff9000 -- 0x0000002009018fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009019000 -- 0x0000002009038fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009039000 -- 0x0000002009058fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009059000 -- 0x0000002009078fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009079000 -- 0x0000002009098fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009099000 -- 0x00000020090b8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x00000020090b9000 -- 0x00000020090d8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x00000020090d9000 -- 0x00000020090f8fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x00000020090f9000 -- 0x0000002009118fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009119000 -- 0x0000002009138fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009139000 -- 0x0000002009158fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009159000 -- 0x0000002009178fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009179000 -- 0x0000002009198fff 0x0000000000020000 RW DoubleBuffer
2.475 [#0 NetworkTask(7:7)]: 0x0000002009199000 -- 0x00000020091a8fff 0x0000000000010000 RW T Kernel stack (thread 9)
2.475 [#0 NetworkTask(7:7)]: 0x00000020091a9000 -- 0x00000020091b8fff 0x0000000000010000 RW T Kernel stack (thread 10)
2.475 [#0 NetworkTask(7:7)]: 0x000000200cc00000 -- 0x000000200e9fffff 0x0000000001e00000
[NetworkTask(7:7)]: KERNEL PANIC! :^(
[NetworkTask(7:7)]: Crash in ring 0
[NetworkTask(7:7)]: at ./Kernel/Arch/x86/common/CrashHandler.cpp:39 in void Kernel::handle_crash(const Kernel::RegisterState &, const char *, int, bool)
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