Description of problem: 虚拟机内核版本为6.6.25-2.1.an23.loongarch64，使用debug版本QEMU_EFI.fd时，虚拟机启动失败 Version-Release number of selected component (if applicable): 系统版本： Anolis 23.1 物理机/虚拟机内核版本： 6.6.25-2.1.an23.loongarch64 qemu版本： qemu-8.2.0-14.an23 edk2版本： edk2-loongarch64-202402-4.an23.noarch 虚拟机qcow2： https://mirrors.openanolis.cn/anolis/23.1/isos/GA/loongarch64/AnolisOS-23.1-loongarch64.qcow2 How reproducible: Steps to Reproduce: 1. 启动虚拟机，命令如下： /usr/bin/qemu-system-loongarch64 \ -name 'avocado-vt-vm1' \ -cpu 'la464-loongarch-cpu' \ -machine virt,accel=kvm \ -m 4096 \ -smp 2 \ -bios /usr/share/edk2/loongarch64/QEMU_EFI.fd \ -boot c -d int \ -drive file=AnolisOS-23.1-loongarch64.qcow2,if=virtio \ -device virtio-vga \ -vnc :0 \ -serial stdio \ -monitor telnet:localhost:1000,server,nowait Actual results: 虚拟机启动失败，虚拟机内核报错信息如下： [ 1.293725][ T1] Kernel ade access[#1]: [ 1.293730][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.6.25-2.1.an23.loongarch64 #1 [ 1.293734][ T1] Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 2/2/2022 [ 1.293735][ T1] pc 9000000003841a44 ra 90000000038417cc tp 900000010029c000 sp 900000010029f640 [ 1.293738][ T1] a0 90000001046fc800 a1 2fafafaf401ce800 a2 0000000000000000 a3 0000000000000000 [ 1.293740][ T1] a4 0000000000000190 a5 0000000000000040 a6 0000000000000000 a7 0720072007200720 [ 1.293742][ T1] t0 2fafafaf401cf480 t1 0000000000000007 t2 0000000000000000 t3 0000000000000040 [ 1.293744][ T1] t4 0000000000000c80 t5 0720072c07730774 t6 0720075107520749 t7 00000000000000c8 [ 1.293746][ T1] t8 0000000000000005 u0 0000000000000000 s9 0000000000000020 s0 0000000000e74000 [ 1.293748][ T1] s1 0000000000000000 s2 0000000000006400 s3 90000000038419a0 s4 900000010029f6a0 [ 1.293750][ T1] s5 9000000004c61000 s6 90000001046fc800 s7 0000000000000008 s8 2fafafaf401ce800 [ 1.293752][ T1] ra: 90000000038417cc cfb_fillrect+0x14c/0x320 [ 1.293765][ T1] ERA: 9000000003841a44 bitfill_aligned+0xa4/0x120 [ 1.293769][ T1] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) [ 1.293781][ T1] PRMD: 00000004 (PPLV0 +PIE -PWE) [ 1.293812][ T1] EUEN: 00000000 (-FPE -SXE -ASXE -BTE) [ 1.293818][ T1] ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7) [ 1.293823][ T1] ESTAT: 00480000 [ADEM] (IS= ECode=8 EsubCode=1) [ 1.293827][ T1] BADV: 2fafafaf401ce800 [ 1.293829][ T1] PRID: 0014c010 (Loongson-64bit, Loongson-3A5000) [ 1.293832][ T1] Modules linked in: [ 1.293834][ T1] Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____)) [ 1.293839][ T1] Stack : 9000000109d47600 9000000100051ce8 900000010004ff38 9000000100051900 [ 1.293846][ T1] 9000000109d9f800 900000010029f6a0 0000000000000008 0000000000000250 [ 1.293850][ T1] 0000000000000320 90000001046fc800 9000000100022c00 900000000383ca90 [ 1.293855][ T1] 0000025000000000 0000000800000320 0000000000000000 81da737424bac5fd [ 1.293860][ T1] 0000000800000000 0000000000000720 9000000005625ef8 0000000000000000 [ 1.293865][ T1] 0000000000000064 ffffffffffffff38 0000000000000000 9000000003838590 [ 1.293870][ T1] 0000002000000060 0000000000000064 00000000000003e8 0000000000000000 [ 1.293875][ T1] 0000000000000000 0000000000000000 0000000000000025 fffffffffffffc18 [ 1.293880][ T1] 0000002000000060 0000000000000001 9000000005629000 9000000100022c00 [ 1.293884][ T1] 9000000109d44800 0000000000000064 0000000000000025 90000001046fc800 [ 1.293889][ T1] ... [ 1.293891][ T1] Call Trace: [ 1.293894][ T1] [<9000000003841a44>] bitfill_aligned+0xa4/0x120 [ 1.293900][ T1] [<90000000038417cc>] cfb_fillrect+0x14c/0x320 [ 1.293904][ T1] [<900000000383ca90>] bit_clear_margins+0xf0/0x140 [ 1.293907][ T1] [<9000000003838590>] fbcon_prepare_logo+0x450/0x4e0 [ 1.293910][ T1] [<900000000383a960>] fbcon_init+0x3e0/0x540 [ 1.293914][ T1] [<90000000039090c4>] visual_init+0xc4/0x140 [ 1.293921][ T1] [<900000000390cf24>] do_bind_con_driver.isra.0+0x204/0x460 [ 1.293926][ T1] [<900000000390d1dc>] do_take_over_console+0x5c/0x80 [ 1.293930][ T1] [<90000000038374ec>] do_fbcon_takeover+0x6c/0x100 [ 1.293934][ T1] [<900000000383c078>] fbcon_fb_registered+0x138/0x1a0 [ 1.293937][ T1] [<900000000382d0b0>] do_register_framebuffer+0x170/0x260 [ 1.293941][ T1] [<900000000382d1d4>] register_framebuffer+0x34/0x60 [ 1.293945][ T1] [<900000000384ef84>] efifb_probe+0x864/0x8c0 [ 1.293950][ T1] [<90000000039e020c>] platform_probe+0x6c/0xe0 [ 1.293956][ T1] [<90000000039dc568>] really_probe+0xc8/0x440 [ 1.293959][ T1] [<90000000039dc970>] __driver_probe_device+0x90/0x1c0 [ 1.293962][ T1] [<90000000039dcadc>] driver_probe_device+0x3c/0xe0 [ 1.293965][ T1] [<90000000039dcc54>] __device_attach_driver+0xd4/0x1a0 [ 1.293968][ T1] [<90000000039d99a0>] bus_for_each_drv+0xa0/0x120 [ 1.293971][ T1] [<90000000039dd210>] __device_attach+0xb0/0x1e0 [ 1.293974][ T1] [<90000000039daf34>] bus_probe_device+0xb4/0xe0 [ 1.293977][ T1] [<90000000039d7584>] device_add+0x564/0x7e0 [ 1.293983][ T1] [<90000000039dfa38>] platform_device_add+0x138/0x300 [ 1.293987][ T1] [<9000000004026450>] sysfb_init+0x100/0x140 [ 1.293995][ T1] [<9000000002d30cb0>] do_one_initcall+0x70/0x280 [ 1.294000][ T1] [<9000000003fe1074>] do_initcalls+0x11c/0x168 [ 1.294008][ T1] [<9000000003fe12bc>] kernel_init_freeable+0x188/0x1cc [ 1.294012][ T1] [<9000000003fce230>] kernel_init+0x28/0x138 [ 1.294020][ T1] [<9000000002d31f08>] ret_from_kernel_thread+0xc/0xa4 [ 1.294023][ T1] [ 1.294024][ T1] Code: 0041198c 0010b0ac 03400000 <270000a7> 001500ad 29c020a7 29c040a7 29c060a7 29c080a7 [ 1.294034][ T1] [ 1.294036][ T1] ---[ end trace 0000000000000000 ]--- [ 1.294041][ T1] Kernel panic - not syncing: Fatal exception [ 1.294062][ T1] Kernel relocated by 0x2b10000 [ 1.294065][ T1] .text @ 0x9000000002d10000 [ 1.294068][ T1] .data @ 0x9000000004110000 [ 1.294069][ T1] .bss @ 0x9000000005547200 [ 1.294386][ T1] Kernel ade access[#2]: [ 1.294389][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G D 6.6.25-2.1.an23.loongarch64 #1 [ 1.294392][ T1] Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 2/2/2022 [ 1.294393][ T1] pc 9000000003842aec ra 900000000383da14 tp 900000010029c000 sp 900000010029f000 [ 1.294395][ T1] a0 0000000000000001 a1 0000000000000002 a2 9000000100052000 a3 90000001046fc800 [ 1.294397][ T1] a4 2fafafaf4016a800 a5 0000000000000004 a6 0000000000000001 a7 0000000000000008 [ 1.294399][ T1] t0 9000000100052001 t1 2fafafaf4016a820 t2 0000000000000001 t3 9000000100052001 [ 1.294401][ T1] t4 0000000000000000 t5 000000000000000f t6 0000000000000020 t7 0000000000000001 [ 1.294402][ T1] t8 0000000000000001 u0 0000000000000000 s9 0000000000000000 s0 0000000000000001 [ 1.294403][ T1] s1 ffffffffffffffff s2 9000000004c61000 s3 0000000000000004 s4 0000000000000002 [ 1.294405][ T1] s5 0000000000000000 s6 900000010029f070 s7 0000000000000003 s8 2fafafaf4016a800 [ 1.294406][ T1] ra: 900000000383da14 soft_cursor+0x1b4/0x260 [ 1.294411][ T1] ERA: 9000000003842aec fast_imageblit.isra.0+0x2ac/0x520 [ 1.294414][ T1] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) [ 1.294420][ T1] PRMD: 00000000 (PPLV0 -PIE -PWE) [ 1.294423][ T1] EUEN: 00000000 (-FPE -SXE -ASXE -BTE) [ 1.294426][ T1] ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7) [ 1.294430][ T1] ESTAT: 00480000 [ADEM] (IS= ECode=8 EsubCode=1) [ 1.294432][ T1] BADV: 2fafafaf4016a800 [ 1.294434][ T1] PRID: 0014c010 (Loongson-64bit, Loongson-3A5000) [ 1.294435][ T1] Modules linked in: [ 1.294436][ T1] Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____)) [ 1.294438][ T1] Stack : 0000000000000001 0000000000000020 0000000000000020 0000000000000000 [ 1.294442][ T1] 9000000104d49980 0000000000000000 0000000000000000 0000000000000000 [ 1.294446][ T1] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 1.294450][ T1] 0000000000000000 81da737424bac5fd 0000000000000060 0000000000000010 [ 1.294453][ T1] 9000000104d499d0 0000000000000010 0000000000000001 9000000100052000 [ 1.294457][ T1] 0000000000000001 90000001046fc800 900000010029f160 9000000104d49980 [ 1.294460][ T1] ffffffffffffffff 900000000383da14 0000000000000060 000000010383d400 [ 1.294464][ T1] 0000000000000010 0000000000000002 9000000004c61000 0000000000000000 [ 1.294467][ T1] 900000000417b190 90000001046fc800 0000000000000007 9000000100009be0 [ 1.294471][ T1] 9000000100022c00 9000000109d44800 0000000000000001 900000000383d54c [ 1.294474][ T1] ... [ 1.294476][ T1] Call Trace: [ 1.294476][ T1] [<9000000003842aec>] fast_imageblit.isra.0+0x2ac/0x520 [ 1.294480][ T1] [<900000000383da14>] soft_cursor+0x1b4/0x260 [ 1.294483][ T1] [<900000000383d54c>] bit_cursor+0x34c/0x5e0 [ 1.294485][ T1] [<900000000390a704>] hide_cursor+0x44/0x100 [ 1.294490][ T1] [<900000000390c744>] vt_console_print+0x4a4/0x4e0 [ 1.294494][ T1] [<9000000002df960c>] console_flush_all+0x1cc/0x500 [ 1.294499][ T1] [<9000000002dfbdf0>] console_flush_on_panic+0x50/0x100 [ 1.294503][ T1] [<9000000003fa5650>] panic+0x230/0x360 [ 1.294508][ T1] [<9000000002d345f0>] die+0x170/0x180 [ 1.294511][ T1] [<9000000003fcb548>] do_ade+0x68/0x80 [ 1.294516][ T1] [<900000000558112c>] exception_handlers+0x112c/0x10000 [ 1.294521][ T1] [<9000000003841a44>] bitfill_aligned+0xa4/0x120 [ 1.294525][ T1] [<90000000038417cc>] cfb_fillrect+0x14c/0x320 [ 1.294528][ T1] [<900000000383ca90>] bit_clear_margins+0xf0/0x140 [ 1.294530][ T1] [<9000000003838590>] fbcon_prepare_logo+0x450/0x4e0 [ 1.294533][ T1] [<900000000383a960>] fbcon_init+0x3e0/0x540 [ 1.294536][ T1] [<90000000039090c4>] visual_init+0xc4/0x140 [ 1.294539][ T1] [<900000000390cf24>] do_bind_con_driver.isra.0+0x204/0x460 [ 1.294543][ T1] [<900000000390d1dc>] do_take_over_console+0x5c/0x80 [ 1.294548][ T1] [<90000000038374ec>] do_fbcon_takeover+0x6c/0x100 [ 1.294550][ T1] [<900000000383c078>] fbcon_fb_registered+0x138/0x1a0 [ 1.294553][ T1] [<900000000382d0b0>] do_register_framebuffer+0x170/0x260 [ 1.294556][ T1] [<900000000382d1d4>] register_framebuffer+0x34/0x60 [ 1.294560][ T1] [<900000000384ef84>] efifb_probe+0x864/0x8c0 [ 1.294563][ T1] [<90000000039e020c>] platform_probe+0x6c/0xe0 [ 1.294567][ T1] [<90000000039dc568>] really_probe+0xc8/0x440 [ 1.294569][ T1] [<90000000039dc970>] __driver_probe_device+0x90/0x1c0 [ 1.294572][ T1] [<90000000039dcadc>] driver_probe_device+0x3c/0xe0 [ 1.294575][ T1] [<90000000039dcc54>] __device_attach_driver+0xd4/0x1a0 [ 1.294578][ T1] [<90000000039d99a0>] bus_for_each_drv+0xa0/0x120 [ 1.294581][ T1] [<90000000039dd210>] __device_attach+0xb0/0x1e0 [ 1.294583][ T1] [<90000000039daf34>] bus_probe_device+0xb4/0xe0 [ 1.294586][ T1] [<90000000039d7584>] device_add+0x564/0x7e0 [ 1.294590][ T1] [<90000000039dfa38>] platform_device_add+0x138/0x300 [ 1.294593][ T1] [<9000000004026450>] sysfb_init+0x100/0x140 [ 1.294597][ T1] [<9000000002d30cb0>] do_one_initcall+0x70/0x280 [ 1.294600][ T1] [<9000000003fe1074>] do_initcalls+0x11c/0x168 [ 1.294604][ T1] [<9000000003fe12bc>] kernel_init_freeable+0x188/0x1cc [ 1.294608][ T1] [<9000000003fce230>] kernel_init+0x28/0x138 [ 1.294612][ T1] [<9000000002d31f08>] ret_from_kernel_thread+0xc/0xa4 [ 1.294614][ T1] [ 1.294615][ T1] Code: 24ffba10 001501bf 02c081ad <29bf81b0> 2a3ffd90 00449a10 0014ba10 00df0210 002cf610 [ 1.294622][ T1] [ 1.294623][ T1] ---[ end trace 0000000000000000 ]--- [ 1.294625][ T1] Kernel panic - not syncing: Fatal exception [ 1.294626][ T1] Kernel relocated by 0x2b10000 [ 1.294627][ T1] .text @ 0x9000000002d10000 [ 1.294628][ T1] .data @ 0x9000000004110000 [ 1.294629][ T1] .bss @ 0x9000000005547200 Expected results: 虚拟机启动正常 Additional info: 1. 虚拟机内核版本为6.6.25-2_rc1.1.an23.loongarch64，使用debug版本QEMU_EFI.fd时，虚拟机启动正常 2. 虚拟机内核版本为6.6.25-2.1.an23.loongarch64，使用release版本QEMU_EFI.silent.fd时，虚拟机启动正常
使用内核最新代码编译内核，更换虚拟机内核后，问题不在
经过定位在debug 版本bios时，grub申请的内存空间没有清零，导致传入kernel的screen info参数错误，需要grub修改一下，在引导efi内核时不存在此问题，只有在引导elf内核时才会存在， 后面由liuxue@loongson.cn跟踪解决