Issue #2597 has been reported by davshao. ---------------------------------------- Bug #2597: panic building devel/gettext post update to m4 1.4.17 http://bugs.dragonflybsd.org/issues/2597
* Author: davshao * Status: New * Priority: Normal * Assignee: * Category: * Target version: ---------------------------------------- Using current master at least updated through commit e8be1190de880a82da339c7b763cadb8bd48e960 Date: Fri Oct 18 10:59:57 2013 +0800 vga_pci: Fix cached resources cleanup and setup driver's softc size build either dports or pkgsrc from scratch, then build say devel/gettext. On multiple machines there is a panic similar to: Fatal trap 12: page fault while in kernel mode cpuid = 2; lapic.id = 02000000 fault virtual address = 0.18 fault code = supervisor read, page not present instruction pointer = 0x8:0xa04c6b38 stack pointer = 0x10:0xba845d40 frame pointer = 0x10:0x1e code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = Idle current thread = pri 12 <- SMP: XXX kernel: type 12 trap, code=0 CPU2 stopping CPUs: 0x0000000b stopped Stopped at vn_syncer_add+0x1e: movl 0x18(%eax),%esi The reason I mention m4 1.4.17 is that a recent upgrade appears to use __fpending which on DragonFly is defined contrary to how it is apparently defined in Linux, with the most serious potential problem that DragonFly's __fpending returns a signed value. The panics are not observed building perl or even building world and kernel, so it does not appear to be a general problem with the new syncer code. dports m4 is patched to paper over the differing signatures of __fpending in order to even get m4 1.4.17 to build. I get the same panics when I applied the dports patch to pkgsrc to get its m4 1.4.17 to build. It is possible m4 is blameless, but whatever the problem is, it seems fairly serious since it manifests in the build path of git which would enable further updates to src or dports if there is a fix ... -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account