>From kostik...@gmail.com Wed Oct 16 13:02:51 2013 > >On Wed, Oct 16, 2013 at 02:55:26PM +0300, Konstantin Belousov wrote: >> On Wed, Oct 16, 2013 at 09:02:19AM +0100, Anton Shterenlikht wrote: >> > panic: >> > http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/182999 >>=20 >> db> show pginfo 0xe00000027d352600 >> page 0xe00000027d352600 obj 0xe0000000128fda00 pidx 0x0 phys 0x275dc6000 = >q 255 hold 0 wire 1 >> af 0x0 of 0x0 f 0x0 act 0 busy 1 valid 0xff dirty 0x0 >>=20 >> AFAIR ia64 uses 8K pages. >>=20 >> Please do the following: >> 1. apply the patch at the end of this message, reproduce the problem >> and show me both exact panic message from the patched kernel and 'show >> pginfo addr' again. >> 2. show me the ls -la <file> output for the file which was accessed >> through nginx, also what is the filesystem where the file resides on ? >Sure, I forgot the patch. > >diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c >index 322550b..9d46dc7 100644 >--- a/sys/kern/uipc_syscalls.c >+++ b/sys/kern/uipc_syscalls.c >@@ -2070,7 +2070,7 @@ free_page: > } > KASSERT(error !=3D 0 || (m->wire_count > 0 && > vm_page_is_valid(m, off & PAGE_MASK, xfsize)), >- ("wrong page state m %p", m)); >+ ("wrong page state m %p off %#jx xfsize %d", m, off, xfsize)); > VM_OBJECT_WUNLOCK(obj); > return (error); > }
The patch didn't apply cleanly. I concluded that my src was older that yours, so I updated to r 256624. Now I don't get this panic! I don't know whether to be happy or not. Anyway, I was on r255488 when the panic happened, and there have been a lot of changes under sys/kern. Specifically related to the patch: # svn info Path: . Working Copy Root Path: /usr/src URL: https://svn0.eu.freebsd.org/base/head/sys/kern Relative URL: ^/head/sys/kern Repository Root: https://svn0.eu.freebsd.org/base Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f Revision: 256624 Node Kind: directory Schedule: normal Last Changed Author: mav Last Changed Rev: 256614 Last Changed Date: 2013-10-16 10:56:40 +0100 (Wed, 16 Oct 2013) # svn diff -r 255488 uipc_syscalls.c Index: uipc_syscalls.c =================================================================== --- uipc_syscalls.c (revision 255488) +++ uipc_syscalls.c (working copy) @@ -123,21 +123,13 @@ /* * sendfile(2)-related variables and associated sysctls */ -int nsfbufs; -int nsfbufspeak; -int nsfbufsused; +static SYSCTL_NODE(_kern_ipc, OID_AUTO, sendfile, CTLFLAG_RW, 0, + "sendfile(2) tunables"); static int sfreadahead = 1; +SYSCTL_INT(_kern_ipc_sendfile, OID_AUTO, readahead, CTLFLAG_RW, + &sfreadahead, 0, "Number of sendfile(2) read-ahead MAXBSIZE blocks"); -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufs, CTLFLAG_RDTUN, &nsfbufs, 0, - "Maximum number of sendfile(2) sf_bufs available"); -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufspeak, CTLFLAG_RD, &nsfbufspeak, 0, - "Number of sendfile(2) sf_bufs at peak usage"); -SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufsused, CTLFLAG_RD, &nsfbufsused, 0, - "Number of sendfile(2) sf_bufs in use"); -SYSCTL_INT(_kern_ipc, OID_AUTO, sfreadahead, CTLFLAG_RW, &sfreadahead, 0, - "Number of sendfile(2) read-ahead MAXBSIZE blocks"); - static void sfstat_init(const void *unused) { @@ -2076,10 +2068,10 @@ vm_page_free(m); vm_page_unlock(m); } + KASSERT(error != 0 || (m->wire_count > 0 && + vm_page_is_valid(m, off & PAGE_MASK, xfsize)), + ("wrong page state m %p off %#jx xfsize %d", m, off, xfsize)); VM_OBJECT_WUNLOCK(obj); - KASSERT(error != 0 || (m->wire_count > 0 && m->valid == - VM_PAGE_BITS_ALL), - ("wrong page state m %p", m)); return (error); } # Please let me know if there is any other diagnostics you'd like to see. Otherwise, till next panic... Many thanks for your help Anton _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
