https://bugs.dragonflybsd.org/https://bugs.dragonflybsd.org/favicon.ico?16293952082011-10-31T01:59:43ZDragonFlyBSD bugtrackerDragonFlyBSD - Bug #2171: DFBSD v2.13.0.151.gdc8442 - panic: assertion "(*ptep & (PG_MANAGED|PG_V)) == PG_V"https://bugs.dragonflybsd.org/issues/2171?journal_id=102522011-10-31T01:59:43Ztuxillo
<ul></ul><p>I have the dump available under demand. Btw, you can ignore the trailing sudo<br />command :P</p> DragonFlyBSD - Bug #2171: DFBSD v2.13.0.151.gdc8442 - panic: assertion "(*ptep & (PG_MANAGED|PG_V)) == PG_V"https://bugs.dragonflybsd.org/issues/2171?journal_id=102682011-11-05T00:06:05Ztuxillo
<ul></ul><p>Hi,</p>
<p>I'm missing some bits of the history here. With commit <br />23b4bd448a61a8934fb2354d2d0add3c20c0c392 I got this panic. I shared it with <br />Matt.</p>
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<p>Unread portion of the kernel message buffer:<br />panic: bad *ptep 0000000000000000 sva ffffffe04b78e000 pte_pv NULL<br />cpuid = 2<br />Trace beginning at frame 0xffffffe04742b728<br />panic() at panic+0x1ed<br />panic() at panic+0x1ed<br />pmap_scan() at pmap_scan+0x83f<br />pmap_remove() at pmap_remove+0x16<br />vm_map_delete() at vm_map_delete+0x271<br />vm_map_remove() at vm_map_remove+0x72<br />kmem_free() at kmem_free+0x1f<br />pipe_free_kmem() at pipe_free_kmem+0x3a<br />pipeclose() at pipeclose+0x278<br />pipe_close() at pipe_close+0x31<br />fdrop() at fdrop+0xf1<br />closef() at closef+0x154<br />kern_close() at kern_close+0x13c<br />sys_close() at sys_close+0xc<br />syscall2() at syscall2+0x330<br />Debugger("panic")</p>
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<p>After that, Matt committed this one: a505393fd1a1920367affae433de8573462fe68c</p>
<p>I tried to do my test again and I finally got infinite messages saying:</p>
<p>swap_pager: indefinite wait buffer: offset xxx size 4096</p>
<p>The virtual machine was not responding anymore and I couldn't escape to DDB <br />either.</p>
<p>Cheers,<br />Antonio Huete</p>