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Analyzed 4 months ago. based on code collected 4 months ago.

Commit Message	Contributor	Files Modified	Lines Added	Lines Removed	Code Location	Date
Jul 20, 2025 — Jul 20, 2026 Showing page 17 of 28 Search / Filter on:
Updated VIRGO Design Doc	ka_shrinivaasan	More...				about 13 years ago
kern.log for test_virgo_malloc virgo_malloc() syscall testcase. Corresponding syscall client log is test_virgo_malloc_output.24October2013	ka_shrinivaasan	More...				about 13 years ago
test_virgo_malloc.c testcase output for virgo_malloc that returns a VIRGO address. Corresponding kern.log showing vtranstable entry address is kern_log_test_virgo_malloc_2_virgo_mempool_driver.working_virgo_malloc.24October2013	ka_shrinivaasan	More...				about 13 years ago
Updated test_virgo_malloc binary	ka_shrinivaasan	More...				about 13 years ago
Updated test_virgo_malloc.c with reinterpret cast of long int return value from virgo_malloc syscall Printfs print in both long int and (struct virgo_address*) cast.	ka_shrinivaasan	More...				about 13 years ago
Due to Kernel Panic all strcat()s have been wrapped with a kstrdup() for guaranteed kernel char* test_virgo_malloc.c has been modified with reinterpret cast of long int return value to a virgo_address pointer and it prints the pointer too. There doesn't seem to be a better way to do this as there are almost nil references for returning a non-"long int " user defined return data type pointer from a kernel syscall. Logs for virgo_malloc and Kernel sides have been added to repository.	ka_shrinivaasan	More...				about 13 years ago
Kern.log test_virgo_malloc debug printk after size computation bugfix and more debug messages	ka_shrinivaasan	More...				about 13 years ago
Updated test_virgo_malloc.c and Makefile with bugfixes	ka_shrinivaasan	More...				about 13 years ago
Added more code comments and if clause for sum of allocated sizes has been changed Also sock_release has been commented	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Doc	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Document	ka_shrinivaasan	More...				about 13 years ago
Kern.log output for virgo_cloud_malloc() test after a kernel rebuild for vtranstable addr fix which is correctly printed in logs. But still there is sock_release and poll_wait panic.	ka_shrinivaasan	More...				about 13 years ago
Uncommented all tests	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Document	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Doc	ka_shrinivaasan	More...				about 13 years ago
Kern.log for simple_strtoll() in virgo_malloc.c which correctly parses the address in string into long long and through reinterpret cast void* is obtained. Line 500 to 600 show that all other %p formats %p, %pK, %pF, %pS print (null) or 00000000 due to some unknown reason.	ka_shrinivaasan	More...				about 13 years ago
simple_strtoll() correctly scans the address instead of all other %p formats (%p, %pK, %pF, %S) which return either 00000000 due to obfuscation or null for unknown reason. Test Kern.log added under test/	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Doc	ka_shrinivaasan	More...				about 13 years ago
prototype for str_to_addr2() which invokes simple_strtoll() has been added	ka_shrinivaasan	More...				about 13 years ago
Added str_to_addr2() function which directly uses simple_strtoll() instead of vsscanf() Also added lot of other %p qualifiers - %pK, %pF, %pS for debugging the null scanf and this is becoming more of trial and error which it shouldn't be as the driver %p sscanf() works. Something is wrong with syscall path.	ka_shrinivaasan	More...				about 13 years ago
Ongoing debugging for null sscanf in virgo_malloc.c. As an alternative to sscanf also tested strtoll in userspace which is bit of a hack to get a pointer from string. Infact the kernel/vsprintf.c in kernel source uses simple_strtoll after parsing the qualifier.	ka_shrinivaasan	More...				about 13 years ago
Updated sscanftest.c with separate pointer for var_sscanf and output in comments. Meanwhile, latest kernel build with same vsscanf code still returns null in virgo_malloc.c as in kern.log below ------------------------------------------------------------------------------------------ Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023661] virgo_mempool_client_thread(): virgo_mempool_ops.virgo_mempool_sendto() Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023665] toAddressString(): address=eea74000, sprintf strAddress=[eea74000] Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023669] virgocloudexec_mempool_sendto(): before kernel_sendmsg() for send buffer: eea74000 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023700] virgocloudexec_mempool_sendto(): kernel_sendmsg() returns ret: 500 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023703] virgocloudexec_mempool_sendto(): Shut down Kernel Side Client Socket with SOCK_WAKE_URG after sendmsg Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023725] virgocloudexec_mempool_sendto(): sock_release invoked on client socket Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023733] virgo_malloc() syscall: recv len=500; received message buf: [eea74000] Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023737] virgo_malloc() syscall: received iov.iov_base: Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023742] str_to_addr(): straddr=[eea74000], address scanned ptr= (null), address scanned voidptr= (null) Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023745] str_to_addr(): after var_sscanf(): straddr=[eea74000], voidptr_vargs by vsscanf: (null) Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023749] virgo_malloc() syscall: vtranstable.vtable[i].addr= (null) Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023754] virgo_malloc() syscall: next_vtable_entry=2, vtranstable.vtable[next_vtable_entry].node_id=2, vtranstable.vtable[next_vtable_entry].addr= (null), vtranstable.vtable[next_vtable_entry].hstprt->hostip=127.0.0.1, vtranstable.vtable[next_vtable_entry].hstprt->port=30000 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023758] virgo_malloc() syscall: le32_to_cpus(buf): eea74000 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023783] BUG: unable to handle kernel NULL pointer dereference at 00000010 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023789] IP: [<c14ee1da>] sock_release+0x1a/0x80 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023800] pdpt = 000000002eb3e001 pde = 0000000000000000 Oct 17 19:35:08 kashrinivaasan-Inspiron-1545 kernel: [ 166.023807] Oops: 0000 [#3] SMP @ @ @ 41646,1 99%	ka_shrinivaasan	More...				about 13 years ago
var_sscanf() function prototype added	ka_shrinivaasan	More...				about 13 years ago
Added vsscanf to virgo_malloc.c for debugging	ka_shrinivaasan	More...				about 13 years ago
Updated sscanftest for vsscanf(). Added sscanftest binary to repository Makefile updated	ka_shrinivaasan	More...				about 13 years ago
Testcase for sscanf %p modifier for testing null sscanf in virgo_malloc.c Standalone sscanf works perfectly.	ka_shrinivaasan	More...				about 13 years ago
Kern.log with str_to_addr() sscanf null return value and pollwait panic in socket_release()	ka_shrinivaasan	More...				about 13 years ago
Updated str_to_addr() with and without void** cast and both return null in sscanf which does not happen in virgo_cloud_mempool_kernelspace.ko module. Ongoing testing and bugfix	ka_shrinivaasan	More...				about 13 years ago
Updated VIRGO Design Doc	ka_shrinivaasan	More...				about 13 years ago
Commented mutex due to a kernel panic though it needn't. Set persistence flag for vtranstable to 0 - not persisted	ka_shrinivaasan	More...				about 13 years ago

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