search for: kernel_recvmsg

I have mounted a samba share using cifs client. cifs client returns with 0 from kernel_recvmsg meaning peer has orderly disconnected/shutdown the socket! What should I be looking for in the messages logged by samba server when it disconnected/shutdown that socket? I am logging at level 10 on the samba server. I looked for keywords like disconnect, shutdown, reset but can't find any....

...@@ -35,8 +48,231 @@ void kvmi_sock_shutdown(struct kvmi *ikvm) kernel_sock_shutdown(ikvm->sock, SHUT_RDWR); } +static int kvmi_sock_read(struct kvmi *ikvm, void *buf, size_t size) +{ + struct kvec i = { + .iov_base = buf, + .iov_len = size, + }; + struct msghdr m = { }; + int rc; + + rc = kernel_recvmsg(ikvm->sock, &m, &i, 1, size, MSG_WAITALL); + + if (rc > 0) + print_hex_dump_debug("read: ", DUMP_PREFIX_NONE, 32, 1, + buf, rc, false); + + if (unlikely(rc != size)) { + if (rc >= 0) + rc = -EPIPE; + else + kvmi_err(ikvm, "kernel_recvmsg: %d\n", rc);...

..._shutdown(struct kvm_introspection *kvmi) kernel_sock_shutdown(kvmi->sock, SHUT_RDWR); } +static int kvmi_sock_read(struct kvm_introspection *kvmi, void *buf, + size_t size) +{ + struct kvec vec = { + .iov_base = buf, + .iov_len = size, + }; + struct msghdr m = { }; + int rc; + + rc = kernel_recvmsg(kvmi->sock, &m, &vec, 1, size, MSG_WAITALL); + + if (unlikely(rc != size && rc >= 0)) + rc = -EPIPE; + + return rc >= 0 ? 0 : rc; +} + +static int kvmi_sock_write(struct kvm_introspection *kvmi, struct kvec *vec, + size_t n, size_t size) +{ + struct msghdr m = { }; +...

...ck_shutdown(struct kvm_introspection *kvmi) kernel_sock_shutdown(kvmi->sock, SHUT_RDWR); } +static int kvmi_sock_read(struct kvm_introspection *kvmi, void *buf, + size_t size) +{ + struct kvec i = { + .iov_base = buf, + .iov_len = size, + }; + struct msghdr m = { }; + int rc; + + rc = kernel_recvmsg(kvmi->sock, &m, &i, 1, size, MSG_WAITALL); + + if (unlikely(rc != size && rc >= 0)) + rc = -EPIPE; + + return rc >= 0 ? 0 : rc; +} + +static int kvmi_sock_write(struct kvm_introspection *kvmi, struct kvec *i, + size_t n, size_t size) +{ + struct msghdr m = { }; + int...

Hi, This is a proof of concept of GPU forwarding for Linux guest on Linux host. I'd like to get comments and suggestions from community before I put more time on it. To summarize what it is: 1. It's a solution to bring GPU acceleration for Linux vm guest on Linux host. It could works with different GPU although the current proof of concept only works with Intel GPU. 2. The basic idea

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place