search for: orig_rax

...interrupt \func jmp ret_from_intr --- linus-2.6.orig/arch/x86_64/kernel/irq.c +++ linus-2.6/arch/x86_64/kernel/irq.c @@ -91,8 +91,8 @@ skip: */ asmlinkage unsigned int do_IRQ(struct pt_regs *regs) { - /* high bits used in ret_from_ code */ - unsigned irq = regs->orig_rax & 0xff; + /* high bit used in ret_from_ code */ + unsigned irq = ~regs->orig_rax; exit_idle(); irq_enter(); --- linus-2.6.orig/arch/x86_64/kernel/smp.c +++ linus-2.6/arch/x86_64/kernel/smp.c @@ -135,10 +135,10 @@ asmlinkage void smp_invalidate_interrupt...

...interrupt \func jmp ret_from_intr --- linus-2.6.orig/arch/x86_64/kernel/irq.c +++ linus-2.6/arch/x86_64/kernel/irq.c @@ -91,8 +91,8 @@ skip: */ asmlinkage unsigned int do_IRQ(struct pt_regs *regs) { - /* high bits used in ret_from_ code */ - unsigned irq = regs->orig_rax & 0xff; + /* high bit used in ret_from_ code */ + unsigned irq = ~regs->orig_rax; exit_idle(); irq_enter(); --- linus-2.6.orig/arch/x86_64/kernel/smp.c +++ linus-2.6/arch/x86_64/kernel/smp.c @@ -135,10 +135,10 @@ asmlinkage void smp_invalidate_interrupt...

...0000808 RDX: 0000000000000815 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffff81063e480100 R8: ffffffff803f0000 R9: ffffffff804b5e2c R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000000 R13: ffff81063e480000 R14: 0000000000000000 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 --- <exception stack> --- #3 [ffffffff803f1f48] acpi_processor_idle at ffffffff8019765e #4 [ffffffff803f1f90] cpu_idle at ffffffff8004939e PID: 0 TASK: ffff810115f11100 CPU: 1 COMMAND: "swapper" #0 [ffff810115f38f20] crash_nmi_callbac...

...e_range+0x47a/0x9b0 [ 2504.186411] Code: 0f 46 46 10 49 39 6e 18 49 89 46 10 48 89 e8 49 0f 43 46 18 41 80 4e 20 08 4d 85 c9 49 89 46 18 0f 84 68 ff ff ff 49 8b 51 08 <48> 8d 42 ff 83 e2 01 49 0f 44 c1 f6 40 18 01 75 38 48 ba ff 0f 00 [ 2504.186411] RSP: 0018:ffffc900036cbcc8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 2504.186412] RAX: ffffffffffffffff RBX: 800000003751d045 RCX: 0000000000000001 [ 2504.186413] RDX: ffffea0002e09288 RSI: 000000000269b000 RDI: ffff8880b6525e40 [ 2504.186413] RBP: 000000000269c000 R08: 0000000000000000 R09: ffffea0000dd4740 [ 2504.186413] R10: ffffea0001755700 R...

...e_range+0x47a/0x9b0 [ 2504.186411] Code: 0f 46 46 10 49 39 6e 18 49 89 46 10 48 89 e8 49 0f 43 46 18 41 80 4e 20 08 4d 85 c9 49 89 46 18 0f 84 68 ff ff ff 49 8b 51 08 <48> 8d 42 ff 83 e2 01 49 0f 44 c1 f6 40 18 01 75 38 48 ba ff 0f 00 [ 2504.186411] RSP: 0018:ffffc900036cbcc8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 2504.186412] RAX: ffffffffffffffff RBX: 800000003751d045 RCX: 0000000000000001 [ 2504.186413] RDX: ffffea0002e09288 RSI: 000000000269b000 RDI: ffff8880b6525e40 [ 2504.186413] RBP: 000000000269c000 R08: 0000000000000000 R09: ffffea0000dd4740 [ 2504.186413] R10: ffffea0001755700 R...

...0000002 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffff8800282839b0 R8: 000000018033a9ac R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000d03 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #8 [ffff8800282839b8] tcp_ack at ffffffff814afb2c #9 [ffff880028283a88] tcp_rcv_state_process at ffffffff814b1128 #10 [ffff880028283b18] tcp_v4_do_rcv at ffffffff814b94f0 #11 [ffff880028283bb8] tcp_v4_rcv at ffffffff814baf9a #12 [ffff880028283c48] ip_local_de...

...> [ 2504.186411] Code: 0f 46 46 10 49 39 6e 18 49 89 46 10 48 89 e8 49 0f 43 46 > 18 41 80 4e 20 08 4d 85 c9 49 89 46 18 0f 84 68 ff ff ff 49 8b 51 08 <48> 8d > 42 ff 83 e2 01 49 0f 44 c1 f6 40 18 01 75 38 48 ba ff 0f 00 > [ 2504.186411] RSP: 0018:ffffc900036cbcc8 EFLAGS: 00000282 ORIG_RAX: > ffffffffffffff13 > [ 2504.186412] RAX: ffffffffffffffff RBX: 800000003751d045 RCX: > 0000000000000001 > [ 2504.186413] RDX: ffffea0002e09288 RSI: 000000000269b000 RDI: > ffff8880b6525e40 > [ 2504.186413] RBP: 000000000269c000 R08: 0000000000000000 R09: > ffffea0000dd4740 &gt...

...ymouthd Not tainted 4.10.0 #7 [ 56.593191] Hardware name: ASUSTeK COMPUTER INC. GL552VXK/GL552VXK, BIOS GL552VXK.200 11/14/2016 [ 56.593192] task: ffff92cd4d0dba00 task.stack: ffffa42d82198000 [ 56.593195] RIP: 0010:ioread32+0x30/0x40 [ 56.593196] RSP: 0018:ffffa42d8219b818 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff10 [ 56.593196] RAX: 00000000ffffffff RBX: 0000000000000000 RCX: 0000000000000018 [ 56.593197] RDX: ffffffff00000000 RSI: ffffa42d8310a014 RDI: ffffa42d8310a04c [ 56.593197] RBP: ffffa42d8219b848 R08: 0000000000000110 R09: ffffa42d8219b7ec [ 56.593198] R10: 0000000000000000 R...

...0000001 RDX: 0000000000000907 RSI: ffffffffa020af11 RDI: ffffffffffff98f6 RBP: ffffc900039f7a58 R8: 0000000000000001 R9: 00000000000003fc R10: ffffffff81a01906 R11: ffff8803f84711f8 R12: ffffffffa02231fb R13: 0000000000000260 R14: 0000000000000004 R15: 0000000000000006 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffffc900039f7910] report_bug at ffffffff81672248 #8 [ffffc900039f7938] fixup_bug at ffffffff8101af85 #9 [ffffc900039f7950] do_trap at ffffffff8101b0d9 #10 [ffffc900039f79a0] do_error_trap at ffffffff8101b190 #11 [ffffc900039f7a50] invalid_op at ffffffff8...

...ys_ioctl+0x67/0x90 [354073.738463] __x64_sys_ioctl+0x1a/0x20 [354073.738465] do_syscall_64+0x5a/0x140 [354073.738467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354073.738468] RIP: 0033:0x7ffad14d3417 [354073.738472] Code: Bad RIP value. [354073.738472] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354073.738473] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354073.738474] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354073.738474] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354073.738475] R10: 00000000000000...

...ys_ioctl+0x67/0x90 [354073.738463] __x64_sys_ioctl+0x1a/0x20 [354073.738465] do_syscall_64+0x5a/0x140 [354073.738467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354073.738468] RIP: 0033:0x7ffad14d3417 [354073.738472] Code: Bad RIP value. [354073.738472] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354073.738473] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354073.738474] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354073.738474] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354073.738475] R10: 00000000000000...

On 5/14/19 7:54 AM, Pankaj Gupta wrote: > + if (!list_empty(&vpmem->req_list)) { > + req_buf = list_first_entry(&vpmem->req_list, > + struct virtio_pmem_request, list); > + req_buf->wq_buf_avail = true; > + wake_up(&req_buf->wq_buf); > + list_del(&req_buf->list); Yes, this change is the right one, thank you! > + /* > + * If

On 5/14/19 7:54 AM, Pankaj Gupta wrote: > + if (!list_empty(&vpmem->req_list)) { > + req_buf = list_first_entry(&vpmem->req_list, > + struct virtio_pmem_request, list); > + req_buf->wq_buf_avail = true; > + wake_up(&req_buf->wq_buf); > + list_del(&req_buf->list); Yes, this change is the right one, thank you! > + /* > + * If

On 05.09.19 10:14, Gerd Hoffmann wrote: > On Tue, Aug 06, 2019 at 09:00:10PM +0300, Jaak Ristioja wrote: >> Hello! >> >> I'm writing to report a crash in the QXL / DRM code in the Linux kernel. >> I originally filed the issue on LaunchPad and more details can be found >> there, although I doubt whether these details are useful. > > Any change with kernel

On 05.09.19 10:14, Gerd Hoffmann wrote: > On Tue, Aug 06, 2019 at 09:00:10PM +0300, Jaak Ristioja wrote: >> Hello! >> >> I'm writing to report a crash in the QXL / DRM code in the Linux kernel. >> I originally filed the issue on LaunchPad and more details can be found >> there, although I doubt whether these details are useful. > > Any change with kernel

...scan_ready_list.constprop.23+0x1f0/0x200 do_vfs_ioctl+0xa9/0x640 ? __sys_recvmsg+0x88/0xa0 ksys_ioctl+0x67/0x90 __x64_sys_ioctl+0x1a/0x20 do_syscall_64+0x5a/0x110 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f3a80734417 Code: Bad RIP value. RSP: 002b:00007ffcae8e3488 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000055aaa657c610 RCX: 00007f3a80734417 RDX: 00007ffcae8e34c0 RSI: 00000000c02464bb RDI: 000000000000000e RBP: 00007ffcae8e34c0 R08: 0000000000000040 R09: 0000000000000010 R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb R13: 000000000000...

...scan_ready_list.constprop.23+0x1f0/0x200 do_vfs_ioctl+0xa9/0x640 ? __sys_recvmsg+0x88/0xa0 ksys_ioctl+0x67/0x90 __x64_sys_ioctl+0x1a/0x20 do_syscall_64+0x5a/0x110 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f3a80734417 Code: Bad RIP value. RSP: 002b:00007ffcae8e3488 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000055aaa657c610 RCX: 00007f3a80734417 RDX: 00007ffcae8e34c0 RSI: 00000000c02464bb RDI: 000000000000000e RBP: 00007ffcae8e34c0 R08: 0000000000000040 R09: 0000000000000010 R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb R13: 000000000000...

...0000000000907 RSI: ffffffffa020af11 RDI: ffffffffffff98f6 > RBP: ffffc900039f7a58 R8: 0000000000000001 R9: 00000000000003fc > R10: ffffffff81a01906 R11: ffff8803f84711f8 R12: ffffffffa02231fb > R13: 0000000000000260 R14: 0000000000000004 R15: 0000000000000006 > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 > #7 [ffffc900039f7910] report_bug at ffffffff81672248 > #8 [ffffc900039f7938] fixup_bug at ffffffff8101af85 > #9 [ffffc900039f7950] do_trap at ffffffff8101b0d9 > #10 [ffffc900039f79a0] do_error_trap at ffffffff8101b190 > #11 [ffffc900039f7a50...

...ys_ioctl+0x67/0x90 [124212.551477] __x64_sys_ioctl+0x1a/0x20 [124212.551479] do_syscall_64+0x5a/0x130 [124212.551480] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [124212.551481] RIP: 0033:0x7f07c79ee417 [124212.551485] Code: Bad RIP value. [124212.551485] RSP: 002b:00007ffc6b1de1a8 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [124212.551486] RAX: ffffffffffffffda RBX: 00005612f109a610 RCX: 00007f07c79ee417 [124212.551487] RDX: 00007ffc6b1de1e0 RSI: 00000000c02464bb RDI: 000000000000000e [124212.551487] RBP: 00007ffc6b1de1e0 R08: 0000000000000040 R09: 0000000000000004 [124212.551488] R10: 00000000000000...

...ector, but it is planned to extend it in the + * future for the #HV exception. + */ +.macro idtentry_vc vector asmsym cfunc +SYM_CODE_START(\asmsym) + UNWIND_HINT_IRET_REGS + ASM_CLAC + + /* + * If the entry is from userspace, switch stacks and treat it as + * a normal entry. + */ + testb $3, CS-ORIG_RAX(%rsp) + jnz .Lfrom_usermode_switch_stack_\@ + + /* + * paranoid_entry returns SWAPGS flag for paranoid_exit in EBX. + * EBX == 0 -> SWAPGS, EBX == 1 -> no SWAPGS + */ + call paranoid_entry + + UNWIND_HINT_REGS + + /* + * Switch off the IST stack to make it free for nested exceptions. The...