Can applications runs in domainU use grant table? I found a way in the document(/docs/misc/grant-tables.txt), using function gnttab_grant_foreign_access . But, this fucntion is defined in domainU kernel, for example, in my installation, it''s in /linux-2.6.18-xen.hg/include/xen/gnttab.h. Then how can I call this function in my own application? If I wants to write a simple program(program1) runs in domainA, to map a frame to domainB, in which another simple program(program2) is running, then program2 can read the information program1 sent to domainB, what should I do? thanks. 2011-04-04 Wishes Ruozeng W _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Konrad Rzeszutek Wilk
2011-Apr-04 14:25 UTC
Re: [Xen-devel] How can I use grant table in domainU?
On Mon, Apr 04, 2011 at 06:15:22PM +0800, ruozeng.w wrote:> Can applications runs in domainU use grant table? > > I found a way in the document(/docs/misc/grant-tables.txt), using function gnttab_grant_foreign_access . But, this fucntion is defined in domainU kernel, for example, in my installation, it''s in /linux-2.6.18-xen.hg/include/xen/gnttab.h. > > Then how can I call this function in my own application? > If I wants to write a simple program(program1) runs in domainA, to map a frame to domainB, in which another simple program(program2) is running, then program2 can read the information program1 sent to domainB, what should I do?Get 2.6.39 and use /dev/gntdev, /dev/gntalloc to do so. Attached is a test program written by Daniel De Graaf. #include <errno.h> #include <fcntl.h> #include <unistd.h> #include <stdio.h> #include <string.h> #include <stdint.h> #include <sys/ioctl.h> #include <sys/mman.h> struct ioctl_gntdev_grant_ref { /* The domain ID of the grant to be mapped. */ uint32_t domid; /* The grant reference of the grant to be mapped. */ uint32_t ref; }; /* * Allocates a new page and creates a new grant reference. */ #define IOCTL_GNTALLOC_ALLOC_GREF \ _IOC(_IOC_NONE, ''G'', 5, sizeof(struct ioctl_gntalloc_alloc_gref)) struct ioctl_gntalloc_alloc_gref { /* IN parameters */ /* The ID of the domain to be given access to the grants. */ uint16_t domid; /* Flags for this mapping */ uint16_t flags; /* Number of pages to map */ uint32_t count; /* OUT parameters */ /* The offset to be used on a subsequent call to mmap(). */ uint64_t index; /* The grant references of the newly created grant, one per page */ /* Variable size, depending on count */ uint32_t gref_ids[1]; }; #define GNTALLOC_FLAG_WRITABLE 1 /* * Deallocates the grant reference, allowing the associated page to be freed if * no other domains are using it. */ #define IOCTL_GNTALLOC_DEALLOC_GREF \ _IOC(_IOC_NONE, ''G'', 6, sizeof(struct ioctl_gntalloc_dealloc_gref)) struct ioctl_gntalloc_dealloc_gref { /* IN parameters */ /* The offset returned in the map operation */ uint64_t index; /* Number of references to unmap */ uint32_t count; }; #define IOCTL_GNTDEV_MAP_GRANT_REF \ _IOC(_IOC_NONE, ''G'', 0, sizeof(struct ioctl_gntdev_map_grant_ref)) struct ioctl_gntdev_map_grant_ref { /* IN parameters */ /* The number of grants to be mapped. */ uint32_t count; uint32_t pad; /* OUT parameters */ /* The offset to be used on a subsequent call to mmap(). */ uint64_t index; /* Variable IN parameter. */ /* Array of grant references, of size @count. */ struct ioctl_gntdev_grant_ref refs[1]; }; #define GNTDEV_MAP_WRITABLE 0x1 #define IOCTL_GNTDEV_UNMAP_GRANT_REF \ _IOC(_IOC_NONE, ''G'', 1, sizeof(struct ioctl_gntdev_unmap_grant_ref)) struct ioctl_gntdev_unmap_grant_ref { /* IN parameters */ /* The offset was returned by the corresponding map operation. */ uint64_t index; /* The number of pages to be unmapped. */ uint32_t count; uint32_t pad; }; /* * Sets up an unmap notification within the page, so that the other side can do * cleanup if this side crashes. Required to implement cross-domain robust * mutexes or close notification on communication channels. * * Each mapped page only supports one notification; multiple calls referring to * the same page overwrite the previous notification. You must clear the * notification prior to the IOCTL_GNTALLOC_DEALLOC_GREF if you do not want it * to occur. */ #define IOCTL_GNTDEV_SET_UNMAP_NOTIFY \ _IOC(_IOC_NONE, ''G'', 7, sizeof(struct ioctl_gntdev_unmap_notify)) struct ioctl_gntdev_unmap_notify { /* IN parameters */ /* Index of a byte in the page */ uint64_t index; /* Action(s) to take on unmap */ uint32_t action; /* Event channel to notify */ uint32_t event_channel_port; }; /* Clear (set to zero) the byte specified by index */ #define UNMAP_NOTIFY_CLEAR_BYTE 0x1 /* Send an interrupt on the indicated event channel */ #define UNMAP_NOTIFY_SEND_EVENT 0x2 /* * Sets up an unmap notification within the page, so that the other side can do * cleanup if this side crashes. Required to implement cross-domain robust * mutexes or close notification on communication channels. * * Each mapped page only supports one notification; multiple calls referring to * the same page overwrite the previous notification. You must clear the * notification prior to the IOCTL_GNTALLOC_DEALLOC_GREF if you do not want it * to occur. */ #define IOCTL_GNTALLOC_SET_UNMAP_NOTIFY \ _IOC(_IOC_NONE, ''G'', 7, sizeof(struct ioctl_gntalloc_unmap_notify)) struct ioctl_gntalloc_unmap_notify { /* IN parameters */ /* Index of a byte in the page */ uint64_t index; /* Action(s) to take on unmap */ uint32_t action; /* Event channel to notify */ uint32_t event_channel_port; }; /* Clear (set to zero) the byte specified by index */ #define UNMAP_NOTIFY_CLEAR_BYTE 0x1 /* Send an interrupt on the indicated event channel */ #define UNMAP_NOTIFY_SEND_EVENT 0x2 #ifndef offsetof #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) #endif int a_fd; int d_fd; struct shr_page { uint64_t id; char buffer[64]; uint8_t notifies[8]; }; struct data { struct shr_page* mem; int handle; } items[128]; void sa(int id) { struct ioctl_gntalloc_alloc_gref arg = { .domid = id, .flags = GNTALLOC_FLAG_WRITABLE, .count = 1 }; int rv = ioctl(a_fd, IOCTL_GNTALLOC_ALLOC_GREF, &arg); if (rv) { printf("src-add error: %s (rv=%d)\n", strerror(errno), rv); return; } int i=0; while (items[i].mem) i++; items[i].mem = mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, a_fd, arg.index); if (items[i].mem == MAP_FAILED) { items[i].mem = 0; printf("mmap failed: SHOULD NOT HAPPEN\n"); return; } items[i].handle = arg.index; printf("Created shared page with domain %d, grant #%d. Mapped locally at %d=%p\n", id, arg.gref_ids[0], arg.index, items[i].mem); items[i].mem->id = rand() | ((long)(getpid()) << 32); items[i].mem->notifies[0] = 1; struct ioctl_gntalloc_unmap_notify uarg = { .index = arg.index + offsetof(struct shr_page, notifies[0]), .action = UNMAP_NOTIFY_CLEAR_BYTE }; rv = ioctl(a_fd, IOCTL_GNTALLOC_SET_UNMAP_NOTIFY, &uarg); if (rv) printf("gntalloc unmap notify error: %s (rv=%d)\n", strerror(errno), rv); } void sd(int ref) { struct ioctl_gntalloc_dealloc_gref arg = { .index = ref, .count = 1 }; int rv = ioctl(a_fd, IOCTL_GNTALLOC_DEALLOC_GREF, &arg); if (rv) printf("src-del error: %s (rv=%d)\n", strerror(errno), rv); else printf("Stopped offering grant at offset %d\n", ref); } void mm(int domid, int refid) { struct ioctl_gntdev_map_grant_ref arg = { .count = 1, .refs[0].domid = domid, .refs[0].ref = refid, }; int rv = ioctl(d_fd, IOCTL_GNTDEV_MAP_GRANT_REF, &arg); if (rv) { printf("Could not map grant %d.%d: %s (rv=%d)\n", domid, refid, strerror(errno), rv); return; } int i=0,j=1; while (items[i].mem) i++; items[i].mem = mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, d_fd, arg.index); if (items[i].mem == MAP_FAILED) { items[i].mem = 0; printf("Could not map grant %d.%d: %s (map failed)\n", domid, refid, strerror(errno), rv); return; } items[i].handle = arg.index; printf("Mapped grant %d.%d as %d=%p\n", domid, refid, arg.index, items[i].mem); while (items[i].mem->notifies[j]) j++; items[i].mem->notifies[j] = 1; struct ioctl_gntalloc_unmap_notify uarg = { .index = arg.index + offsetof(struct shr_page, notifies[j]), .action = UNMAP_NOTIFY_CLEAR_BYTE }; rv = ioctl(d_fd, IOCTL_GNTDEV_SET_UNMAP_NOTIFY, &uarg); if (rv) printf("gntdev unmap notify error: %s (rv=%d)\n", strerror(errno), rv); } void gu(int index) { struct ioctl_gntdev_unmap_grant_ref arg = { .index = index, .count = 1, }; int rv = ioctl(d_fd, IOCTL_GNTDEV_UNMAP_GRANT_REF, &arg); if (rv) printf("gu error: %s (rv=%d)\n", strerror(errno), rv); else printf("Unhooked mapped grant at offset %d\n", index); } void mu(void* addr) { int i = 0; munmap(addr, 4096); while (i < 128) { if (items[i].mem == addr) items[i].mem = 0; i++; } printf("Unmapped page at %p\n", addr); } void show(char* word) { int i; int wlen = strlen(word); for(i=0; i < 128; i++) { if (!items[i].mem) continue; memmove(items[i].mem->buffer + wlen, items[i].mem->buffer, 63 - wlen); memcpy(items[i].mem->buffer, word, wlen); printf("%02d(%ld,%d): id %16lx n=%d%d%d%d%d%d%d%d b=%s\n", i, items[i].mem, items[i].handle, items[i].mem->id, items[i].mem->notifies[0], items[i].mem->notifies[1], items[i].mem->notifies[2], items[i].mem->notifies[3], items[i].mem->notifies[4], items[i].mem->notifies[5], items[i].mem->notifies[6], items[i].mem->notifies[7], items[i].mem->buffer); } printf("END\n"); } int main(int argc, char** argv) { a_fd = open("/dev/xen/gntalloc", O_RDWR); d_fd = open("/dev/xen/gntdev", O_RDWR); printf( "add <domid> return gntref, address\n" "map <domid> <ref> return index, address\n" "adel <gntref> delete <add> internal\n" "ddel <index> delete <map> internal\n" "unmap <address> unmap memory\n" "show show all pages\n" "<word> append word to all mapped pages, show\n" " PID %x\n", getpid() ); while (1) { char line[80]; char word[80]; long a, b; printf("\n> "); fflush(stdout); fgets(line, 80, stdin); sscanf(line, "%s %ld %ld", word, &a, &b); if (!strcmp(word, "add")) { sa(a); } else if (!strcmp(word, "map")) { mm(a, b); } else if (!strcmp(word, "adel")) { sd(a); } else if (!strcmp(word, "ddel")) { gu(a); } else if (!strcmp(word, "unmap")) { mu((void*)a); } else if (!strcmp(word, "show")) { show(""); } else { show(word); } } }> > thanks. > > 2011-04-04 > > > > Wishes > Ruozeng W> _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Konrad Rzeszutek Wilk
2011-Apr-13 17:43 UTC
Re: Re: [Xen-devel] How can I use grant table in domainU?
On Wed, Apr 13, 2011 at 11:52:25PM +0800, ruozeng wang wrote:> Hi, > > I''ve tried to install xen-4.1.0 with 2.6.39-rc2 kernel on CentOS 5.5, Debian > 5.07 and ubuntu 8.04, at last succeeded with ubuntu. > But when I tried to start xend, it failed.Please also CC the mailing list. I did this for you.> > /var/log/xend.log: > > *[2011-04-13 20:35:52 6937] DEBUG (tcp:96) Listening on :8002 > [2011-04-13 20:35:52 6937] ERROR (SrvDaemon:349) Exception starting xend > ((98, ''Address already in use'')) > Traceback (most recent call last): > File "usr/lib/python2.5/site-packages/xen/xend/server/SrvDaemon.py", line > 339, in run > relocate.listenRelocation() > File "usr/lib/python2.5/site-packages/xen/xend/server/relocate.py", line > 159, in listenRelocation > hosts_allow = hosts_allow) > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 38, in > __init__ > connection.SocketListener.__init__(self, protocol_class) > File "usr/lib/python2.5/site-packages/xen/web/connection.py", line 89, in > __init__ > self.sock = self.createSocket() > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 97, in > createSocket > sock.bind((self.interface, self.port)) > File "<string>", line 1, in bind > error: (98, ''Address already in use'')Looks like someobyd is listening already on that port.> [2011-04-13 20:35:52 6936] INFO (SrvDaemon:220) Xend exited with status 1.* > > Could you tell me what may cause this? Someone might have met this before, > but I can''t find a solution. > > http://lists.xensource.com/archives/html/xen-users/2006-05/msg00397.html > > netstat -ltnp does show an active connection, listening local address > 0.0.0.0:8002, but I don''t know if it is right or notOk, what program is using it?> > > thanks > > ruozeng.w > regards > 2011-4-43 > > > > 2011/4/6 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > > > On Wed, Apr 06, 2011 at 10:57:00PM +0800, ruozeng wang wrote: > > > Sorry, I''m a little confused……What is this 2.6.39 kernel for? When I > > build > > > and install xen, it downloaded a "linux-2.6.18-xen.hg" (using mercurial), > > > should I update this kernel to 2.6.39? Or update my host OS kernel to > > > 2.6.39? I found 2.6.39-rc2 kernel at kernel.org, but it''s not for xen, > > it''s > > > a stadard kernel, I think. > > > > The standard mainline kernel has Xen components in it. You need to > > compile it with CONFIG_PVOPS and CONFIG_XEN and you will have a fully > > working kernel that can boot up either on native, or under the Xen > > hypervisor. > > > > > > > > > > So is this my misunderstanding? > > > > > > I planed to install xen 4.0.0 on CentOS 5.4 tommorow. > > > Please tell me some more details. Thank you so much for you patience. > > > > Please use Google. Search for ''PVOPS Wiki''. > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
ruozeng wang
2011-Apr-14 02:08 UTC
Re: Re: [Xen-devel] How can I use grant table in domainU?
Sorry, I forgot to CC, my fault. I''ll do it from now on. Program listening 0.0.0.0:8002 is *python* Here is the netstat output: *Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:8002 0.0.0.0:* LISTEN 6416/python* 2011/4/14 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>> On Wed, Apr 13, 2011 at 11:52:25PM +0800, ruozeng wang wrote: > > Hi, > > > > I''ve tried to install xen-4.1.0 with 2.6.39-rc2 kernel on CentOS 5.5, > Debian > > 5.07 and ubuntu 8.04, at last succeeded with ubuntu. > > But when I tried to start xend, it failed. > > Please also CC the mailing list. I did this for you. > > > > /var/log/xend.log: > > > > *[2011-04-13 20:35:52 6937] DEBUG (tcp:96) Listening on :8002 > > [2011-04-13 20:35:52 6937] ERROR (SrvDaemon:349) Exception starting xend > > ((98, ''Address already in use'')) > > Traceback (most recent call last): > > File "usr/lib/python2.5/site-packages/xen/xend/server/SrvDaemon.py", > line > > 339, in run > > relocate.listenRelocation() > > File "usr/lib/python2.5/site-packages/xen/xend/server/relocate.py", > line > > 159, in listenRelocation > > hosts_allow = hosts_allow) > > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 38, in > > __init__ > > connection.SocketListener.__init__(self, protocol_class) > > File "usr/lib/python2.5/site-packages/xen/web/connection.py", line 89, > in > > __init__ > > self.sock = self.createSocket() > > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 97, in > > createSocket > > sock.bind((self.interface, self.port)) > > File "<string>", line 1, in bind > > error: (98, ''Address already in use'') > > Looks like someobyd is listening already on that port. > > [2011-04-13 20:35:52 6936] INFO (SrvDaemon:220) Xend exited with status > 1.* > > > > Could you tell me what may cause this? Someone might have met this > before, > > but I can''t find a solution. > > > > > http://lists.xensource.com/archives/html/xen-users/2006-05/msg00397.html > > > > netstat -ltnp does show an active connection, listening local address > > 0.0.0.0:8002, but I don''t know if it is right or not > > Ok, what program is using it? > > > > > > thanks > > > > ruozeng.w > > regards > > 2011-4-43 > > > > > > > > 2011/4/6 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > > > > > On Wed, Apr 06, 2011 at 10:57:00PM +0800, ruozeng wang wrote: > > > > Sorry, I''m a little confused……What is this 2.6.39 kernel for? When I > > > build > > > > and install xen, it downloaded a "linux-2.6.18-xen.hg" (using > mercurial), > > > > should I update this kernel to 2.6.39? Or update my host OS kernel to > > > > 2.6.39? I found 2.6.39-rc2 kernel at kernel.org, but it''s not for > xen, > > > it''s > > > > a stadard kernel, I think. > > > > > > The standard mainline kernel has Xen components in it. You need to > > > compile it with CONFIG_PVOPS and CONFIG_XEN and you will have a fully > > > working kernel that can boot up either on native, or under the Xen > > > hypervisor. > > > > > > > > > > > > > > So is this my misunderstanding? > > > > > > > > I planed to install xen 4.0.0 on CentOS 5.4 tommorow. > > > > Please tell me some more details. Thank you so much for you patience. > > > > > > Please use Google. Search for ''PVOPS Wiki''. > > > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
ruozeng wang
2011-Apr-14 12:22 UTC
Re: Re: [Xen-devel] How can I use grant table in domainU?
This is from /var/log/xen/xend-debug.log: Xend started at Thu Apr 14 17:39:00 2011. cat: /sys/bus/scsi/devices/host0/vendor: No such file or directory cat: /sys/bus/scsi/devices/host0/model: No such file or directory cat: /sys/bus/scsi/devices/host0/type: No such file or directory cat: /sys/bus/scsi/devices/host0/rev: No such file or directory cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory cat: /sys/bus/scsi/devices/host1/model: No such file or directory cat: /sys/bus/scsi/devices/host1/type: No such file or directory cat: /sys/bus/scsi/devices/host1/rev: No such file or directory cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory cat: /sys/bus/scsi/devices/host2/model: No such file or directory cat: /sys/bus/scsi/devices/host2/type: No such file or directory cat: /sys/bus/scsi/devices/host2/rev: No such file or directory cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory cat: /sys/bus/scsi/devices/host3/model: No such file or directory cat: /sys/bus/scsi/devices/host3/type: No such file or directory cat: /sys/bus/scsi/devices/host3/rev: No such file or directory cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/host4/vendor: No such file or directory cat: /sys/bus/scsi/devices/host4/model: No such file or directory cat: /sys/bus/scsi/devices/host4/type: No such file or directory cat: /sys/bus/scsi/devices/host4/rev: No such file or directory cat: /sys/bus/scsi/devices/host4/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/host5/vendor: No such file or directory cat: /sys/bus/scsi/devices/host5/model: No such file or directory cat: /sys/bus/scsi/devices/host5/type: No such file or directory cat: /sys/bus/scsi/devices/host5/rev: No such file or directory cat: /sys/bus/scsi/devices/host5/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/target2:0:0/vendor: No such file or directory cat: /sys/bus/scsi/devices/target2:0:0/model: No such file or directory cat: /sys/bus/scsi/devices/target2:0:0/type: No such file or directory cat: /sys/bus/scsi/devices/target2:0:0/rev: No such file or directory cat: /sys/bus/scsi/devices/target2:0:0/scsi_level: No such file or directory cat: /sys/bus/scsi/devices/target3:0:0/vendor: No such file or directory cat: /sys/bus/scsi/devices/target3:0:0/model: No such file or directory cat: /sys/bus/scsi/devices/target3:0:0/type: No such file or directory cat: /sys/bus/scsi/devices/target3:0:0/rev: No such file or directory cat: /sys/bus/scsi/devices/target3:0:0/scsi_level: No such file or directory Is there any connections between this and the "address already in use" problem? thanks ruozeng.w 2011-4-14 2011/4/14 ruozeng wang <ruozeng.w@gmail.com>> Sorry, I forgot to CC, my fault. I''ll do it from now on. > > Program listening 0.0.0.0:8002 is *python* > > Here is the netstat output: > > *Proto Recv-Q Send-Q Local Address Foreign Address > State PID/Program name > tcp 0 0 0.0.0.0:8002 0.0.0.0:* > LISTEN 6416/python* > > > > 2011/4/14 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > >> On Wed, Apr 13, 2011 at 11:52:25PM +0800, ruozeng wang wrote: >> > Hi, >> > >> > I''ve tried to install xen-4.1.0 with 2.6.39-rc2 kernel on CentOS 5.5, >> Debian >> > 5.07 and ubuntu 8.04, at last succeeded with ubuntu. >> > But when I tried to start xend, it failed. >> >> Please also CC the mailing list. I did this for you. >> > >> > /var/log/xend.log: >> > >> > *[2011-04-13 20:35:52 6937] DEBUG (tcp:96) Listening on :8002 >> > [2011-04-13 20:35:52 6937] ERROR (SrvDaemon:349) Exception starting xend >> > ((98, ''Address already in use'')) >> > Traceback (most recent call last): >> > File "usr/lib/python2.5/site-packages/xen/xend/server/SrvDaemon.py", >> line >> > 339, in run >> > relocate.listenRelocation() >> > File "usr/lib/python2.5/site-packages/xen/xend/server/relocate.py", >> line >> > 159, in listenRelocation >> > hosts_allow = hosts_allow) >> > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 38, in >> > __init__ >> > connection.SocketListener.__init__(self, protocol_class) >> > File "usr/lib/python2.5/site-packages/xen/web/connection.py", line 89, >> in >> > __init__ >> > self.sock = self.createSocket() >> > File "usr/lib/python2.5/site-packages/xen/web/tcp.py", line 97, in >> > createSocket >> > sock.bind((self.interface, self.port)) >> > File "<string>", line 1, in bind >> > error: (98, ''Address already in use'') >> >> Looks like someobyd is listening already on that port. >> > [2011-04-13 20:35:52 6936] INFO (SrvDaemon:220) Xend exited with status >> 1.* >> > >> > Could you tell me what may cause this? Someone might have met this >> before, >> > but I can''t find a solution. >> > >> > >> http://lists.xensource.com/archives/html/xen-users/2006-05/msg00397.html >> > >> > netstat -ltnp does show an active connection, listening local address >> > 0.0.0.0:8002, but I don''t know if it is right or not >> >> Ok, what program is using it? >> > >> > >> > thanks >> > >> > ruozeng.w >> > regards >> > 2011-4-43 >> > >> > >> > >> > 2011/4/6 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> >> > >> > > On Wed, Apr 06, 2011 at 10:57:00PM +0800, ruozeng wang wrote: >> > > > Sorry, I''m a little confused……What is this 2.6.39 kernel for? When I >> > > build >> > > > and install xen, it downloaded a "linux-2.6.18-xen.hg" (using >> mercurial), >> > > > should I update this kernel to 2.6.39? Or update my host OS kernel >> to >> > > > 2.6.39? I found 2.6.39-rc2 kernel at kernel.org, but it''s not for >> xen, >> > > it''s >> > > > a stadard kernel, I think. >> > > >> > > The standard mainline kernel has Xen components in it. You need to >> > > compile it with CONFIG_PVOPS and CONFIG_XEN and you will have a fully >> > > working kernel that can boot up either on native, or under the Xen >> > > hypervisor. >> > > >> > > >> > > > >> > > > So is this my misunderstanding? >> > > > >> > > > I planed to install xen 4.0.0 on CentOS 5.4 tommorow. >> > > > Please tell me some more details. Thank you so much for you >> patience. >> > > >> > > Please use Google. Search for ''PVOPS Wiki''. >> > > >> > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Konrad Rzeszutek Wilk
2011-Apr-14 13:39 UTC
Re: Re: [Xen-devel] How can I use grant table in domainU?
On Thu, Apr 14, 2011 at 08:22:24PM +0800, ruozeng wang wrote:> This is from /var/log/xen/xend-debug.log:Look also in the xend.log file, and make sure to turn on the DEBUg options in your /etc/xen/xend-config.sxp file. And read through the file please. Have you tried using ''xl''? _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
ruozeng wang
2011-Apr-14 15:58 UTC
Re: Re: [Xen-devel] How can I use grant table in domainU?
Yes, I''ve tried some of the xen command , but all of them return this
error
:
"*Unable to connect to xend: No such file or dirctory. Is xend
running?*"
Then I found the infomation in xend-debug.log, which I''ve send in last
mail.
Here is the content of xend.log:
*[2011-04-13 20:35:52 6937] DEBUG (tcp:96) Listening on :8002
[2011-04-13 20:35:52 6937] ERROR (SrvDaemon:349) Exception starting xend
((98, ''Address already in use''))
Traceback (most recent call last):
File
"usr/lib/python2.5/site-**packages/xen/xend/server/**SrvDaemon.py",
line 339, in run
relocate.listenRelocation()
File
"usr/lib/python2.5/site-**packages/xen/xend/server/**relocate.py",
line 159, in listenRelocation
hosts_allow = hosts_allow)
File "usr/lib/python2.5/site-**packages/xen/web/tcp.py", line 38, in
__init__
connection.SocketListener.__**init__(self, protocol_class)
File "usr/lib/python2.5/site-**packages/xen/web/connection.**py",
line 89,
in __init__
self.sock = self.createSocket()
File "usr/lib/python2.5/site-**packages/xen/web/tcp.py", line 97, in
createSocket
sock.bind((self.interface, self.port))
File "<string>", line 1, in bind
error: (98, ''Address already in use'')
[2011-04-13 20:35:52 6936] INFO (SrvDaemon:220) Xend exited with status 1.
*
but since I set loglevel to DEBUG in xend-config.sxp, it changed to this:
*[2011-04-14 23:40:21 6477] INFO (SrvDaemon:332) Xend Daemon started
[2011-04-14 23:40:21 6477] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2011-04-14 23:40:21 6477] DEBUG (tcp:96) Listening on :8002
[2011-04-14 23:40:22 6477] DEBUG (XendNode:332) pscsi record count: 10
[2011-04-14 23:40:22 6477] DEBUG (XendCPUPool:747) recreate_active_pools*
When I enter "xend start", the output infomation is like this:
*
root@ruozeng-desktop2:~# xend start
There is already a pid file /var/run/dhclient.eth0.pid with pid 5962
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:1d:7d:57:23:12
Sending on LPF/eth0/00:1d:7d:57:23:12
Sending on Socket/fallback
DHCPRELEASE on eth0 to 172.21.201.1 port 67
Nothing to flush.
There is already a pid file /var/run/dhclient.eth0.pid with pid 134519072
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:1d:7d:57:23:12
Sending on LPF/eth0/00:1d:7d:57:23:12
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPOFFER of 172.21.6.114 from 172.21.6.254
DHCPREQUEST of 172.21.6.114 on eth0 to 255.255.255.255 port 67
DHCPACK of 172.21.6.114 from 172.21.6.254
bound to 172.21.6.114 -- renewal in 41866 seconds.
*
Then it stucked here. I have to use control-c to interrupt.
If I use ps -A, it shows that there are four "xend" process :
*6306 pts/0 00:00:00 xend
6376 ? 00:00:00 kworker/1:2
6442 ? 00:00:00 dhclient3
6474 pts/0 00:00:00 blktapctrl <defunct>
6475 ? 00:00:00 xend <defunct>
6476 ? 00:00:00 xend
6477 ? 00:00:00 xend
*
And some other xen related processes, xenbus, etc.
ruozeng.w
2011-4-14
2011/4/14 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> On Thu, Apr 14, 2011 at 08:22:24PM +0800, ruozeng wang wrote:
> > This is from /var/log/xen/xend-debug.log:
>
> Look also in the xend.log file, and make sure to turn on the DEBUg
> options in your /etc/xen/xend-config.sxp file. And read through the
> file please.
>
> Have you tried using ''xl''?
>
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On Thu, Apr 14, 2011 at 11:58:43PM +0800, ruozeng wang wrote:> Yes, I''ve tried some of the xen command , but all of them return this error > : > "*Unable to connect to xend: No such file or dirctory. Is xend running?*" > > Then I found the infomation in xend-debug.log, which I''ve send in last mail. > > Here is the content of xend.log: > > *[2011-04-13 20:35:52 6937] DEBUG (tcp:96) Listening on :8002 > [2011-04-13 20:35:52 6937] ERROR (SrvDaemon:349) Exception starting xend > ((98, ''Address already in use'')) > Traceback (most recent call last): > File "usr/lib/python2.5/site-**packages/xen/xend/server/**SrvDaemon.py", > line 339, in run > relocate.listenRelocation() > File "usr/lib/python2.5/site-**packages/xen/xend/server/**relocate.py", > line 159, in listenRelocation > hosts_allow = hosts_allow) > File "usr/lib/python2.5/site-**packages/xen/web/tcp.py", line 38, in > __init__ > connection.SocketListener.__**init__(self, protocol_class) > File "usr/lib/python2.5/site-**packages/xen/web/connection.**py", line 89, > in __init__ > self.sock = self.createSocket() > File "usr/lib/python2.5/site-**packages/xen/web/tcp.py", line 97, in > createSocket > sock.bind((self.interface, self.port)) > File "<string>", line 1, in bind > error: (98, ''Address already in use'') > [2011-04-13 20:35:52 6936] INFO (SrvDaemon:220) Xend exited with status 1. > > > * > but since I set loglevel to DEBUG in xend-config.sxp, it changed to this: > > *[2011-04-14 23:40:21 6477] INFO (SrvDaemon:332) Xend Daemon started > [2011-04-14 23:40:21 6477] INFO (SrvDaemon:336) Xend changeset: unavailable. > [2011-04-14 23:40:21 6477] DEBUG (tcp:96) Listening on :8002 > [2011-04-14 23:40:22 6477] DEBUG (XendNode:332) pscsi record count: 10 > [2011-04-14 23:40:22 6477] DEBUG (XendCPUPool:747) recreate_active_pools* > > When I enter "xend start", the output infomation is like this: > * > root@ruozeng-desktop2:~# xend start > There is already a pid file /var/run/dhclient.eth0.pid with pid 5962 > killed old client process, removed PID file > Internet Systems Consortium DHCP Client V3.0.6 > Copyright 2004-2007 Internet Systems Consortium. > All rights reserved. > For info, please visit http://www.isc.org/sw/dhcp/ > > Listening on LPF/eth0/00:1d:7d:57:23:12 > Sending on LPF/eth0/00:1d:7d:57:23:12 > Sending on Socket/fallback > DHCPRELEASE on eth0 to 172.21.201.1 port 67 > Nothing to flush. > There is already a pid file /var/run/dhclient.eth0.pid with pid 134519072 > Internet Systems Consortium DHCP Client V3.0.6 > Copyright 2004-2007 Internet Systems Consortium. > All rights reserved. > For info, please visit http://www.isc.org/sw/dhcp/ > > Listening on LPF/eth0/00:1d:7d:57:23:12 > Sending on LPF/eth0/00:1d:7d:57:23:12 > Sending on Socket/fallback > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 > DHCPOFFER of 172.21.6.114 from 172.21.6.254 > DHCPREQUEST of 172.21.6.114 on eth0 to 255.255.255.255 port 67 > DHCPACK of 172.21.6.114 from 172.21.6.254 > bound to 172.21.6.114 -- renewal in 41866 seconds. > *How did you get it to do a dhclient on eth0? Can you just re-install the toolstack from the hg tree? I am really not sure why it is in such a state.> Then it stucked here. I have to use control-c to interrupt. > > If I use ps -A, it shows that there are four "xend" process : > > *6306 pts/0 00:00:00 xend > 6376 ? 00:00:00 kworker/1:2 > 6442 ? 00:00:00 dhclient3 > 6474 pts/0 00:00:00 blktapctrl <defunct> > 6475 ? 00:00:00 xend <defunct> > 6476 ? 00:00:00 xend > 6477 ? 00:00:00 xend > * > And some other xen related processes, xenbus, etc. > > ruozeng.w > 2011-4-14 > > 2011/4/14 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > > > On Thu, Apr 14, 2011 at 08:22:24PM +0800, ruozeng wang wrote: > > > This is from /var/log/xen/xend-debug.log: > > > > Look also in the xend.log file, and make sure to turn on the DEBUg > > options in your /etc/xen/xend-config.sxp file. And read through the > > file please. > > > > Have you tried using ''xl''? > >> _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel