[PATCH v2] KVM: fix overflow of zero page refcount with ksm running

2019-10-11 Thread Zhuang Yanying
octl+0x26e/0x5d0 [kvm] [40914.836650] do_vfs_ioctl+0xa9/0x620 [40914.836653] ksys_ioctl+0x60/0x90 [40914.836654] __x64_sys_ioctl+0x16/0x20 [40914.836658] do_syscall_64+0x5b/0x180 [40914.836664] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [40914.83] RIP: 0033:0x7fb61cb6bfc7 Signed-off-by: LinFeng

[PATCH] KVM: fix overflow of zero page refcount with ksm running

2019-10-11 Thread Zhuang Yanying
octl+0x26e/0x5d0 [kvm] [40914.836650] do_vfs_ioctl+0xa9/0x620 [40914.836653] ksys_ioctl+0x60/0x90 [40914.836654] __x64_sys_ioctl+0x16/0x20 [40914.836658] do_syscall_64+0x5b/0x180 [40914.836664] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [40914.83] RIP: 0033:0x7fb61cb6bfc7 Signed-off-by: LinFeng

[PATCH] KVM: fix overflow of zero page refcount ksm use_zero_pages

2019-10-11 Thread Zhuang Yanying
octl+0x26e/0x5d0 [kvm] [40914.836650] do_vfs_ioctl+0xa9/0x620 [40914.836653] ksys_ioctl+0x60/0x90 [40914.836654] __x64_sys_ioctl+0x16/0x20 [40914.836658] do_syscall_64+0x5b/0x180 [40914.836664] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [40914.83] RIP: 0033:0x7fb61cb6bfc7 Signed-off-by: LinFeng